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  • 1.
    Abid, Muhammad
    et al.
    Jönköping University, School of Engineering, JTH. Research area Industrial Engineering and Management.
    Özkan, Senol
    Jönköping University, School of Engineering, JTH. Research area Industrial Engineering and Management.
    The Relation between Lean Manufacturing & Customer's Demand Uncertainty2009Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Customer Demand Uncertainty is a big obstacle for companies to sustain their competitiveness in the market that responding customer requirements becomes essential. Besides companies need to consider also their cost structures which should have in high consistency to survive as well. Lean and Agile terminologies have been investigated so far in cost and responsiveness to customer manner within internal system perspective i.e. product volume and variety. This thesis aims to link lean manufacturing steps with customer demand uncertainty condition following information systems, marketing issues and human factor for management level in framework that firm’s (manufacturer) current condition can be tested according to answers from questionnaires and implementation of assessment tables since it is used as guideline and provides on which level firms are in demand uncertainty, lean and agile manufacturing. This support enables to firms to create their own flexible leagile decoupling point according to their interior characteristics and capabilities in the market.

  • 2.
    Ahl, Helene
    et al.
    Jönköping University, School of Education and Communication, HLK, Lifelong learning/Encell.
    Marlow, Susan
    Entrepreneurship and the postfeminist turn: Women’s final emancipation or the same old story?2016Conference paper (Refereed)
  • 3.
    Ahlskog, Mats
    et al.
    Mälardalens högskola, Innovation och produktrealisering.
    Bruch, Jessica
    Mälardalens högskola, Innovation och produktrealisering.
    Jackson, Mats
    Mälardalens högskola, Innovation och produktrealisering.
    Factors affecting development of production technologies in a machining environment2014In: Tools and Methods of Competitive Engineering 2014 TMCE 2014, Tools and Methods of Competitive Engineering (TMCE) , 2014Conference paper (Refereed)
    Abstract [en]

    The purpose of this paper is to identify critical factors forcing manufacturing companies to improve the development of production technology in a machining environment. The focus in the paper is on industrial challenges within product design and production system development when introducing new products in a machining environment. Particular attention is given to the product development process and the production equipment acquisition process. A single case study is presented, consisting of interviews, observations, document studies and an analysis of a large Swedish manufacturing company. The case study company is characterized by advanced production technology, high mechanization and high automation level. In parallel with the case study a literature review was conducted in order to identify state-of-the-art methods/models for efficient design and product introduction within a production system. The paper identifies a gap in the current way of working within the case company as well as challenges regarding the development of production technology. Based on the study, the need for future research has been identified including the need of developing an improved working support for efficient production technology development when industrializing new products.

  • 4.
    Ahlskog, Mats
    et al.
    Mälardalens högskola, Innovation och produktrealisering.
    Bruch, Jessica
    Mälardalens högskola, Innovation och produktrealisering.
    Jackson, Mats
    Mälardalens högskola, Innovation och produktrealisering.
    Joint Development of a Manufacturing Technology: A Longitudinal Case Study within the Manufacturing Industry2015In: 22nd International Annual EurOMA Conference EurOMA15, 2015Conference paper (Refereed)
    Abstract [en]

    In order to compete within the manufacturing industry, there is a need to acquire and develop new manufacturing technologies to differentiate the company from others. Therefore, the purpose of this paper is to analyse factors affecting development of a manufacturing technology in a joint development project with an equipment supplier. A longitudinal case study has been conducted at a Swedish manufacturing company and the collaboration between a manufacturing company and an equipment supplier has been studied. The findings reveal that tacit knowledge and good equipment supplier relationship are highly important factors that facilitate development of a manufacturing technology.

  • 5.
    Ahlskog, Mats
    et al.
    Mälardalens högskola, Innovation och produktrealisering.
    Bruch, Jessica
    Mälardalens högskola, Innovation och produktrealisering.
    Jackson, Mats
    Mälardalens högskola, Innovation och produktrealisering.
    Managing early manufacturing technology development phases and key activities2016In: 23rd EurOMA conference EUROMA 2016, International Annual EurOMA Conference, 2016Conference paper (Refereed)
    Abstract [en]

    In order to compete within the manufacturing industry, there is a need to acquire and develop new manufacturing technologies to differentiate the company from others. This paper builds on extant operations management and innovation management literature with the focus on how to managing early manufacturing technology development. A multiple case study has been conducted at a Swedish manufacturing company in the automotive industry and our paper proposes a conceptual process for early manufacturing technology development and the key activities therein. The findings are relevant for managers working with long-term development and the paper concludes by discussing implications and research limitations.

  • 6.
    Ahlskog, Mats
    et al.
    Mälardalens högskola, Innovation och produktrealisering.
    Jackson, Mats
    Mälardalens högskola, Innovation och produktrealisering.
    Bruch, Jessica
    Mälardalens högskola, Innovation och produktrealisering.
    Manufacturing Technology Readiness Assessment2015Conference paper (Other academic)
    Abstract [en]

    The purpose of this paper is to analyze and discuss how the MRL scale can support the assessment of a manufacturing technology’s maturity level. A single case study within the manufacturing industry has been conducted investigating the use of a MRL scale. An assessment of MRL 4 has been studied.

  • 7.
    AKIL, ANIL
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Manual Assembly Improvement In Make to Order Production2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Manual assembly systems are widely used for producing customized products in make to order production. Despite their competitive advantages, manual assembly systems bring several problems to the production organizations. Early identification of problems on the production floor is very important in order to keep production processes running smoothly and efficient. Hence, this research aims to increase the knowledge of understanding problems related to manual assembly systems in make to order production and develop solutions for the problems. To be able to reach the research aim, two research questions were formulated. While, the first question investigates the problems related to manual assembly systems in make to order production, the second question aims to develop possible solutions for the problems.

    To be able to investigate the research problem in a real-life context, a single case study was performed at Volvo Powertrain F-Plant in Skövde, Sweden where there is a manual assembly of heavy duty diesel engine variants. In addition, existing literature was also investigated to make connections between the theory and the practice. As a result, the problems were revealed under six main categories as assembly processes, assembly operator learning, material handling, layout, ergonomics and information system. After revealing the problems, solutions were developed for each problem by using lean production principles and lean tools such as value stream mapping, standardized work. Moreover, other methods such as implementing kitting system, eliminating 7 waste in the production and implementing Takt time were also used to develop solutions. Based on the value stream mapping at the case company, improvements were developed and future state map was created for the case company. Evidently, the theoretical framework and the results from the empirical work were supported each other. At the end of the research, both research questions were answered and the aim of the research has been reached successfully.

    The results of the research could be used as a guide for production organizations with similar production systems in order to identify and eliminate problems in manual assembly systems in make to order production. In addition, this study could be a basis to investigate the problems and their solutions in manual assembly systems in make to order production. The problems and solutions in manual assembly systems in make to order production could be extended by applying new theories and methods in the research area as a further research.

  • 8.
    Akincilar, Sera
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Rad, Cameron
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Material Handling System Design: A Case-Study in Bosch Rexroth Japan2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In today’s fierce competitive global markets, customers are demanding adjustable lot sizes, shorter lead times, higher quality and flexibility; in short, they want it all. In order to stay competitive in the market, companies need to attain both customer satisfaction and cost reduction in production operations. Material Handling Systems (MHS) is the place to accomplish this goal, since they have a direct impact on production. Therefore, the aim of this study was to design an in-house MHS that could be efficient for the production it serves.

    With this intention, a case-study has been conducted in Bosch Rexroth Japan. During the study, the information gathered through various sources; interviews, observations and measurements. Further, the gathered data is evaluated according to main pillars of the theoretical framework, which includes design principles and physical elements, information and software, human and management.

    By analyzing the findings from literature review and empirical study, first problems and challenges related to MHSs are identified. Thereafter, possible features that the system should posses are elicited and a design is built out of the selected features.

    To conclude, the results show that the success is not solely depending on system’s physical attributes; on the contrary, it is more related to rapid and accurate information sharing within the system. Another vital element is the interaction between system and the people, who are utilizing and operating the system. In general terms, the research took MHS design problems from one-dimensional equipment selection processes and enriches them by adding information sharing, human and management angles to design steps.

  • 9.
    Akincilar, Sera
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Rad, Cameron
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Material Handling System Design: A Case-Study in Bosch Rexroth Japan2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In today’s fierce competitive global markets, customers are demanding adjustable lot sizes, shorter lead times, higher quality and flexibility; in short, they want it all. In order to stay competitive in the market, companies need to attain both customer satisfaction and cost reduction in production operations. Material Handling Systems (MHS) is the place to accomplish this goal, since they have a direct impact on production. Therefore, the aim of this study was to design an in-house MHS that could be efficient for the production it serves.

    With this intention, a case-study has been conducted in Bosch Rexroth Japan. During the study, the information gathered through various sources; interviews, observations and measurements. Further, the gathered data is evaluated according to main pillars of the theoretical framework, which includes design principles and physical elements, information and software, human and management.

    By analyzing the findings from literature review and empirical study, first problems and challenges related to MHSs are identified. Thereafter, possible features that the system should posses are elicited and a design is built out of the selected features.

    To conclude, the results show that the success is not solely depending on system’s physical attributes; on the contrary, it is more related to rapid and accurate information sharing within the system. Another vital element is the interaction between system and the people, who are utilizing and operating the system. In general terms, the research took MHS design problems from one-dimensional equipment selection processes and enriches them by adding information sharing, human and management angles to design steps.

  • 10.
    Alayón, Claudia
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Säfsten, Kristina
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Johansson, Glenn
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Sustainability in manufacturing: A literature review2013Conference paper (Other academic)
    Abstract [en]

    Increased sustainability awareness among consumers and other stakeholders has created a challenging environment for manufacturers. In order to remain in current markets it is expected from manufacturer's operations to be conscious about their impact on sustainability issues. The paper reports on a systematic review which examines sustainability practices in manufacturing companies. The systematic review aims to identify empirical-based papers to pinpoint sustainability issues addressed within manufacturing industry. To do so, trending topic categories were identified for each sustainability dimension (environment, people and profit). This paper provides further direction for future research.

  • 11.
    Allen, Ann Marie
    et al.
    INSEAD Humanitarian Research Group.
    Kovács, Gyöngyi
    Hanken School of Economics.
    Masini, Andrea
    Operations Management & Information Technology, HEC Paris.
    Vaillancourt, Alain
    Hanken School of Economics.
    Van Wassenhove, Luk
    INSEAD Humanitarian Research Group.
    Exploring the link between the humanitarian logistician and training needs2013In: Journal of Humanitarian Logistics and Supply Chain Management, ISSN 2042-6747, E-ISSN 2042-6755, Vol. 3, no 2, p. 129-148Article in journal (Refereed)
    Abstract [en]

    Purpose – The aim of this paper is to evaluate job profiles in humanitarian logistics, and assess current task priorities in light of further training and educational needs.

    Design/methodology/approach – The paper presents findings from a survey among humanitarian logistics practitioners and compares these to other studies in this area. It uses econometric models to evaluate the impact of managerial responsibilities in training needs, usage of time and previous training.

    Findings – The results show that the skills required in humanitarian logistics seem to follow the T-shaped skills model from Mangan and Christopher when looking at training wanted and time usage.

    Research limitations/implications – Survey respondents being members of the Humanitarian Logistics Association (HLA) may be more interested in developing the humanitarian logistics profession than other populations.

    Originality/value – This paper offers an insight in the specific skill requirements of humanitarian logisticians from members of the HLA and allows to understand which type of skills are linked to managerial responsibilities. The paper also establishes a link between logistics skill models and career progressions overall.

  • 12.
    Almgren, Martin
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Tryggvesson, Josef
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Analys av monteringslinan för luftbehandlingsaggregat (EC)2006Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    The purpose of the work is to analyze and balance an assembly line at Fläkt Woods in Jönköping. The work is going to answer the questions about today’s throughput time, how much waste that occurs, number of staff at the assembly line, how the supply of material works and possible improvements that can be made at the work stations. The work is also going to give a proposal of improve-ments that can be made.

    The methods used to get the result include observations and measurements, con-versations with technicians and operators and also data from Fläkt Woods’ data-base.

    Large variations in throughput time are measured during the measure period, from 3 hours up to 5 hours and 35 minutes. These variations depend mainly on the time the air handling unit spends between the stations. The identification of the bottleneck was shown that it occurred in the last station in the assembly line. This results in a pressure from the stations behind with a long throughput time as a con-sequence. The largest source of waste is the operators’ waiting time. The measures that have been made show that the operators wait 33.4 % on average of the time available. The number of operators varies from ten to twelve during the measure period. This number of operators is too high in consideration of the high waiting times. It results in difficulties for the operators to move between the stations be-cause every station is fully manned. The supply of larger components for example fans, batteries, rotary heat exchangers and dampers for the air handling units are made by a truck driver. This leads to disorder in the work stations and fixed posi-tions for a number of smaller components and tools go missing.

    The analysis of the result shows that the pressure that occurs in the assembly line results in high throughput time because the units wait a long time between the stations. To eliminate these waiting times, a suction must be created. The difficul-ties for the operators to move between the stations can be solved with a lower number of operators. This makes it easier for the operators to move between the stations and reduce the waiting time for the operators.

  • 13. Almström, Peter
    et al.
    Andersson, Carin
    Muhammad, Abid
    Winroth, Mats
    Jönköping University, School of Engineering, JTH. Research area Industrial Production.
    Achieving Sustainable Production through Increased Utilization of Production Resources2011Conference paper (Other academic)
  • 14. Almström, Peter
    et al.
    Andersson, Carin
    Muhammad, Abid
    Winroth, Mats
    Jönköping University, School of Engineering, JTH. Research area Industrial Engineering and Management.
    Hållbar produktion kan skapas genom ökad utnyttjandegrad2010In: Verkstäderna, no 10Article in journal (Other (popular science, discussion, etc.))
  • 15.
    Almström, Rasmus
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Falk, Agust
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Överproduktion och dess samband med ekonomisk hållbarhet: Faktorer som bidrar till överproduktion2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

     

    Purpose– The purpose of this study is to investigate factors that contribute to overproduction and what economic consequence overproduction has. To fulfil the purpose, two research questions has been formulated:

    1. Why does overproduction take place in companies with CNC-machines?
    2. How does overproduction affect cost items that contributes to economic sustainability?

    Method– To fulfil the study’s purpose a single case study has been conducted on a manufacturing company within the automotive industry. Interviews, document studies and a focus group have been the methods for the empirical data collection. The empirical data has been analysed together with the theoretical framework and created the study’s result. 

     

     

    Results– The study resulted in identifying several cost items that are affected by overproduction and different factors that contribute to overproduction have been identified. 

     

    Implications – The study contributed with new information to the knowledge gap regarding overproduction and the consequences of it. Findings from the study can be used as a template for companies that are interested as to which factors contribute to overproduction. 

     

    Limitations– To conduct the study one focal company was used, the focal company is of a manufacturing type with a CNC-machine park and are active in the automotive industry. Because of the characteristics in the automotive industry and the use of only one focal company the generalizability of the study is reduced. To increase the generalizability further studies are required. 

     

    Keywords– Overproduction, economic sustainability, automotive, Leagile, Overall Equipment Efficiency (OEE), Economic Order Quantity (EOQ), Just-In-Time (JIT).

  • 16.
    Amini Malaki, Afshin
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    A Study of the Effects of Operational Time Variability in Assembly Lines with Linear Walking Workers2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In the present fierce global competition, poor responsiveness, low flexibility to meet the uncertainty of demand, and the low efficiency of traditional assembly lines are adequate motives to persuade manufacturers to adopt highly flexible production tools such as cross-trained workers who move along the assembly line while carrying out their planned jobs at different stations [1]. Cross-trained workers can be applied in various models in assembly lines. A novel model which taken into consideration in many industries nowadays is called the linear walking worker assembly line and employs workers who travel along the line and fully assemble the product from beginning to end [2]. However, these flexible assembly lines consistently endure imbalance in their stations which causes a significant loss in the efficiency of the lines. The operational time variability is one of the main sources of this imbalance [3] and is the focus of this study which investigated the possibility of decreasing the mentioned loss by arranging workers with different variability in a special order in walking worker assembly lines. The problem motivation comes from the literature of unbalanced lines which is focused on bowl phenomenon. Hillier and Boling [4] indicated that unbalancing a line in a bowl shape could reach the optimal production rate and called it bowl phenomenon.

     This study chose a conceptual design proposed by a local automotive company as a case study and a discrete event simulation study as the research method to inspect the questions and hypotheses of this research. 

    The results showed an improvement of about 2.4% in the throughput due to arranging workers in a specific order, which is significant compared to the fixed line one which had 1 to 2 percent improvement. In addition, analysis of the results concluded that having the most improvement requires grouping all low skill workers together. However, the pattern of imbalance is significantly effective in this improvement concerning validity and magnitude.

  • 17.
    Andersen, Ann-Louise
    et al.
    Department of Mechanical and Manufacturing Engineering, Aalborg University, Denmark.
    Brunoe, Thomas Ditlev
    Department of Mechanical and Manufacturing Engineering, Aalborg University, Denmark.
    Nielsen, Kjeld
    Department of Mechanical and Manufacturing Engineering, Aalborg University, Denmark.
    Rösiö, Carin
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Towards a generic design method for reconfigurable manufacturing systems: Analysis and synthesis of current design methods and evaluation of supportive tools2017In: Journal of manufacturing systems, ISSN 0278-6125, E-ISSN 1878-6642, Vol. 42, p. 179-195Article in journal (Refereed)
    Abstract [en]

    In today's global manufacturing environment, changes are inevitable and something that every manufacturer must respond to and take advantage of, whether it is in regards to technology changes, product changes, or changes in the manufacturing processes. The reconfigurable manufacturing system (RMS) meets this challenge through the ability to rapidly and efficiently change capacity and functionality, which is the reason why it has been widely labelled the manufacturing paradigm of the future. However, design of the RMS represents a significant challenge compared to the design of traditional manufacturing systems, as it should be designed for efficient production of multiple variants, as well as multiple product generations over its lifetime. Thus, critical decisions regarding the degree of scalability and convertibility of the system must be considered in the design phase, which affects the abilities to reconfigure the system in accordance with changes during its operating lifetime. However, in current research it is indicated that conventional manufacturing system design methods do not support the design of an RMS and that a systematic RMS design method is lacking, despite the fact that numerous contributions exist. Moreover, there is currently only limited evidence for the breakthrough of reconfigurability in industry. Therefore, the research presented in this paper aims at synthesizing current contributions into a generic method for RMS design. Initially, currently available design methods for RMS are reviewed, in terms of classifying and comparing their content, structure, and scope, which leads to a synthesis of the reviewed methods into a generic design method. In continuation of this, the paper includes a discussion of practical implications related to carrying out the design, including an identification of potential challenges and an assessment of which tools that can be applied to support the design. Conclusively, further areas for research are indicated, which provides valuable knowledge of how to develop and realize the benefits of reconfigurability in industry. 

  • 18.
    Andersen, Ann-Louise
    et al.
    Aalborg Univ, Denmark.
    Rösiö, Carin
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management. Jönköping University, School of Engineering, JTH. Research area Industrial Production.
    Bruch, Jessica
    Mälardalens högskola, Innovation och produktrealisering.
    Jackson, Mats
    Mälardalens högskola, Innovation och produktrealisering.
    Reconfigurable Manufacturing - An Enabler for a Production System Portfolio Approach2016In: Procedia CIRP, Elsevier, 2016, p. 139-144Conference paper (Refereed)
    Abstract [en]

    The purpose of this paper is to investigate how the development of a strategically integrated product and production system portfolio could be enabled by the concept of reconfigurable manufacturing. In previous research, several critical challenges related to developing production system portfolios have been identified, but it has not been investigated how developing a reconfigurable manufacturing concept could aid some of these. Therefore, through a multiple case study, these critical challenges have been investigated in two companies that have recently developed reconfigurable manufacturing concepts for multiple variants and generations of products. The findings reveal that the companies need to deal with several challenges in order to enable a functioning RMS. By running the project separately from the NPD project and to include several product types and production sites the company overcome several challenges. (C) 2016 The Authors. Published by Elsevier B.V.

  • 19.
    Andersson, Anna
    et al.
    Mälardalens högskola, Institutionen för innovation, design och produktutveckling.
    Jackson, Mats
    Efficient logistics development through regional collaboration2004In: Proceedings of the 6th research and application conference of PLAN 2004, 2004, p. 12-Conference paper (Other academic)
  • 20.
    Andersson, Elin
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Holmgren, Louise
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Improving efficiency in material supply to assembly line: A case study in the automotive industry in Southeast Asia2015Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of the thesis was to improve the material supply for assembly line.

    Methodology - The collected data were conducted through observations and measurements at the case company. Empirical data were analyzed and compared with the theoretical framework.

    Result - Several non-value adding activities were identified in the case study that resulted in 88% of the total working effort. These non-value adding activities were classified into wastes referring to Liker and Meier (2006). Six different wastes were found: excess inventory, unnecessary transportation, unnecessary movements, defected products, waiting, unused and neglected resources. Improvement recommendations were proposed to increase the efficiency of the material supply.

    Conclusions – There is at least one improvement proposal for every identified waste and combinations of these improvement proposals can reduce the non-value adding activities. Methods that can be useful to improve the material supply efficiency are change storage policy, reduce batch size, route plan milk-runs, implement standard work procedures and develop and integrate the information system. 5S and Kaizen are proposed theories that promote continuous improvements of the material supply.

    Research Limitations – Since there are many factors affecting the material supply, more improvement proposals could have been found without delimitation of activities. This thesis is based on a single case study which leads to generalizable results for only companies with similar circumstances.

    Further Research – By implementing the conducted improvement proposals a comparison of non-value adding activities is possible to strengthen the presented methods.Key Words – Material Supply, Lean production, Non-Value Adding Activities, Wastes, Efficiency Improvements.

  • 21.
    Andersson, Linus
    et al.
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Polsten, Victor
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Effektivisering av två monteringslinor ur ett produktivitetsperspektiv2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Hur kan två automatiserade monteringslinor effektiviseras för att öka antalet färdigmonterade produkter i timmen? Denna fråga ställdes inledandevis vid utformningen av detta examensarbete, som är gjort i samarbete med företaget Thule Sweden AB (Thule). Bakgrunden till detta examensarbete är att Thule anser att två av deras monteringslinor inte når sin fulla kapacitet. Utifrån bakgrunden kom syftet att öka antalet färdigmonterade produkter per timme för respektive monteringslina. För att besvara syftet formulerades tre frågeställningar; Hur kan monteringstakten öka genom kortare upptäcktstider vid larm? Vilka rutiner kan implementeras för att skapa förutsättningar till ökad monteringstakt? Finns det möjlighet till ytterligare ökad monteringstakt? För de båda linorna finns ett mål uppsatt om hur många paketerade kartonger (fyra produkter per kartong) som ska göras i timmen, 90 respektive 100 stycken.

    För att besvarar frågeställningarna och på så vis uppfylla arbetets syfte har datainsamling i form av tidsstudier, observationer och samtal genomförts. Datainsamlingen har sedan analyserats för att skapa en bild av nuläget. Nulägesbeskrivningen ligger sedan till grund för förbättringsarbetet.

    Gällande lina X ansågs den största förbättringspotentialen finnas i linans larmsystem. I dagsläget tar det drygt 20 sekunder för operatörerna att upptäcka larmen. Upptäcktstiden påverkar antalet färdiga kartonger i timmen genom att utrustningen står stilla på grund av att operatörerna är omedvetna om larmen. Upptäcktstiden går troligtvis att sänka genom investeringar i larmsystemet. Under förutsättning att upptäcktstiden sänks till noll sekunder ökar monteringstakten med nästan tio kartonger per timme. Med en upptäcktstid på noll sekunder samt andra förbättringar kan monteringstakten öka med totalt 14,3 kartonger per timme.

    Lina Y:s larmsystem är annorlunda i jämförelse med det som finns på lina X. Upptäcktstiden vid lina Y är endast en sjättedel av upptäcktstiden för lina X, därför ansågs det viktigare att lägga större vikt vid att förbättra andra problemområden. För att förbättra en manuell monteringsstation gjordes en SAM-analys på en ny monteringsmetod. SAM-analysen visade att monteringstiden kan minskas från 8,45 sekunder till 7,37 sekunder. Det finns också en automatiserad station med 8,35 sekunders operationstid. Lyckas Thule reducera denna tid till en operationstid under 7,37 och att den nya monteringsmetoden implementeras kommer de få ut 15,6 fler kartonger per timme. Genomförs också övriga förbättringsförslag kommer monteringstakten öka med ytterligare 7,8 kartonger per timme.         

    Slutsatsen för detta examensarbete är att det går att öka antalet färdigpaketerade kartonger med 14,3 respektive 23,4 kartonger i timmen. Detta förutsatt att Thule implementerar de förslag som tagits fram.

  • 22.
    Andersson, Linus
    et al.
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Polsten, Victor
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Effektivisering av två monteringslinor ur ett produktivitetsperspektiv2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Hur kan två automatiserade monteringslinor effektiviseras för att öka antalet färdigmonterade produkter i timmen? Denna fråga ställdes inledandevis vid utformningen av detta examensarbete, som är gjort i samarbete med företaget Thule Sweden AB (Thule). Bakgrunden till detta examensarbete är att Thule anser att två av deras monteringslinor inte når sin fulla kapacitet. Utifrån bakgrunden kom syftet att öka antalet färdigmonterade produkter per timme för respektive monteringslina. För att besvara syftet formulerades tre frågeställningar; Hur kan monteringstakten öka genom kortare upptäcktstider vid larm? Vilka rutiner kan implementeras för att skapa förutsättningar till ökad monteringstakt? Finns det möjlighet till ytterligare ökad monteringstakt? För de båda linorna finns ett mål uppsatt om hur många paketerade kartonger (fyra produkter per kartong) som ska göras i timmen, 90 respektive 100 stycken.

    För att besvarar frågeställningarna och på så vis uppfylla arbetets syfte har datainsamling i form av tidsstudier, observationer och samtal genomförts. Datainsamlingen har sedan analyserats för att skapa en bild av nuläget. Nulägesbeskrivningen ligger sedan till grund för förbättringsarbetet.

    Gällande lina X ansågs den största förbättringspotentialen finnas i linans larmsystem. I dagsläget tar det drygt 20 sekunder för operatörerna att upptäcka larmen. Upptäcktstiden påverkar antalet färdiga kartonger i timmen genom att utrustningen står stilla på grund av att operatörerna är omedvetna om larmen. Upptäcktstiden går troligtvis att sänka genom investeringar i larmsystemet. Under förutsättning att upptäcktstiden sänks till noll sekunder ökar monteringstakten med nästan tio kartonger per timme. Med en upptäcktstid på noll sekunder samt andra förbättringar kan monteringstakten öka med totalt 14,3 kartonger per timme.

    Lina Y:s larmsystem är annorlunda i jämförelse med det som finns på lina X. Upptäcktstiden vid lina Y är endast en sjättedel av upptäcktstiden för lina X, därför ansågs det viktigare att lägga större vikt vid att förbättra andra problemområden. För att förbättra en manuell monteringsstation gjordes en SAM-analys på en ny monteringsmetod. SAM-analysen visade att monteringstiden kan minskas från 8,45 sekunder till 7,37 sekunder. Det finns också en automatiserad station med 8,35 sekunders operationstid. Lyckas Thule reducera denna tid till en operationstid under 7,37 och att den nya monteringsmetoden implementeras kommer de få ut 15,6 fler kartonger per timme. Genomförs också övriga förbättringsförslag kommer monteringstakten öka med ytterligare 7,8 kartonger per timme.         

    Slutsatsen för detta examensarbete är att det går att öka antalet färdigpaketerade kartonger med 14,3 respektive 23,4 kartonger i timmen. Detta förutsatt att Thule implementerar de förslag som tagits fram.

  • 23.
    Andersson, Oskar
    et al.
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Bylow, Jacob
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Lean Produktion inom prefabindustrin2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The thesis was executed at Kynningsrud Prefab AB in Uddevalla. The company produces precast elements within the construction industry.  Currently, the company is not fully satisfied with the internal communication or the flow of material or finished products. Thus, Kynningsrud is planning to create a production system, KPS, in order to keep in pace with their current sales expansion.

    Through deliberations and discussions regarding the issue together with the company, a decision was made to focus on the manufacturing of the concrete walls. The conclusion came down to the purpose of the thesis would be to analyze and identify opportunities of improvement and to develop proposals targeted lean production.

    To eliminate non-value adding time as well as working to standardize operations and make the internal communication more efficient the two theories The seven wastes+one and the 5S tool was elected as theoretical framework. The necessary information about each step of the manufacturing process was collected by observing, interviewing and participation in the working process. The information was assembled to six current state descriptions of the production and describes every operation in each step of the processes. Finally, the description was analyzed according to the theoretical framework.

    The analysis resulted in eight improvement proposals that together would eliminate waste with a total time of approximately 12 hours a day for all analyzed operations combined. It meant a cost reduction of about 3,500 Swedish crowns per day. The compilation of the information collected was illustrated through a gap analysis.

    The time duration that was used for the saving calculations were estimated values ​​through observations and interviews with staff members. When calculating the time possible to save the lowest estimated time duration were used and the results may therefore contain numbers of unknown cases. It makes the calculations the theoretically lowest savings that can be made. In reality, the cost reduction could be greater if the improvement proposals were implemented.

  • 24.
    Andersson, Roy
    Högskolan i Borås, Institutionen Ingenjörshögskolan.
    Quality-driven logistics2007Licentiate thesis, monograph (Other academic)
    Abstract [en]

    The overall objective of this thesis is to describe and explain how different quality management philosophies can be combined in the supply/demand chain, in order to contribute to its resilience. The analysis is both quantitative and qualitative, based on theory and literature related to TQM, Lean, Agile and Six Sigma, one literature study and three case studies that were performed in companies. The studies are related to four research questions and are presented in four papers. The first research question focuses on similarities and differences between the quality management concepts TQM, Lean and Six Sigma. The findings were that TQM, Six Sigma and Lean have many similarities, but they differ in some areas. For examples Lean addresses process flow and waste, whereas Six Sigma addresses variation and design. The conclusion is that there is a lot to gain if organisations are able to combine these three concepts, as they are complementary. Two case studies and a literature survey supported the findings. The second research question focuses on outcomes in a logistics process if using quality management. The findings were that the quality management approach leads to risks being mitigated, managed and monitored and ensures a more effective, robust and flexible process, very much in line with the Agility philosophy. Solutions for quicker response to customers have also been introduced. The findings were supported by two case studies in seven companies. The third research question focuses on how prepared the transport- and logistics-oriented companies are for the application of quality concepts and quality management philosophy. The findings were that they can be described as being TQM-oriented. The companies do not consider Lean and Six Sigma to be future trends. Focus is on the customer, while they do not focus on variations or removing waste. The findings were supported by a case study in 24 companies. The fourth research question focuses on how quality concepts can contribute to risk control and resilience in an organisation. A combined Lean/Six Sigma approach by using Six Sigma framework and the last phase, Perfection, in the Lean concept, implies that the companies’ resilience, due to their strengthened ability to handle variability, risk management and agility, was improved. The findings were supported by two case studies in seven companies.

  • 25.
    Andersson, Roy
    Högskolan i Borås, Institutionen Ingenjörshögskolan.
    Supply chain resilience through quality management2009Doctoral thesis, monograph (Other academic)
    Abstract [en]

    The length and complexity of the supply chain tend to increase, rather than diminish, thereby making the supply chain riskier and less predictable and, hence, more vulnerable. At the same time, customers are becoming increasingly demanding. The challenge to businesses today is to create a resilient supply chain in order to manage and mitigate risk and vulnerability. The purpose of the thesis is to explore, describe and develop the use of a combined quality management philosophy in logistics processes in order to improve supply chain resilience. The findings are supported by six studies, which are presented here in six papers. The studies show that there is a lot to gain if organisations are able to combine quality management philosophies, as they are complementary to one another. TQM places its strongest emphasis on the commitment and involvement of all employees. Lean is a discipline that focuses on process speed and removal of waste in order to increase customer value. Six Sigma benefits from an added focus on variability and design of products/services and processes. It has been indicated that a combined quality management philosophy makes the logistics processes more reliable, flexible, agile and robust while reducing cost. The companies’ risk awareness has increased and their risk management has been improved, thanks to the Six Sigma training programmes and philosophy. Using a combined quality management philosophy, the speed of production could be increased, and the responsiveness and flexibility could be improved, which means quicker response to changes. It has also been indicated that a combined quality management philosophy improves the companies’ resilience, due to their increased agility and strengthened ability to handle variability and risk management. Quality management tools can be very effective in the companies’ efforts to control supply chain risk and to identify risk sources of variation, even outside the focal company. In Six Sigma projects, the root cause of variation is often found outside the focal companies, which requires more collaboration in the supply chain. However, if the companies that use a combined quality management philosophy intend to become more resilient, they must involve suppliers and customers more in their own processes and design products/services and processes together. Collaboration with the suppliers and customers and the notion of how to extend a combined quality management philosophy outside the focal company are of importance in order to make the whole supply chain resilient. This could lead to a problem, especially since the conditions for transport and logistics in regards to the application of quality methods and tools represent a large area, unexploited by the companies. On the other hand, Six Sigma has standardised training courses, and it has been demonstrated how a Six Sigma framework can enable collaboration across companies’ boundaries in the supply chain, with the use of Six Sigma training and the DMAIC-roadmap as a common platform. Even if a combined quality management philosophy is effective and efficient, the companies must re-invest in additional methods, tools and strategies to make the entire supply chain resilient. It could be this re-investment in risk prevention and mitigation solutions that enables faster process responsiveness, the establishment of a risk management culture by creating common values, culture and rules in the supply chain and the use of logistics strategies and methods.

  • 26.
    Andersson, Roy
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management. Jönköping University, School of Engineering, JTH. Research area Industrial Production.
    Manfredsson, Peter
    Högskolan i Borås, Institutionen Textilhögskolan.
    Svensson, Victor
    University of Skövde.
    Preventive maintenance is an enabler for operation excellence in support processes2014Conference paper (Refereed)
    Abstract [en]

    TPM in a Lean office environment can create values both in a business and an employee dimension. In the employee dimension TPM reduces the risk of missing/forgetting areas of responsibility and creates more involvement. In the business dimension objectives such as cost, quality and supporting the reduction of waste improved. Preventive maintenance meetings can be included and performed once a month in the ordinary departmental “stand-up meetings”. Methods like 5S, which need to be updated on a continuous basis, and standardized maintenance should also be connected to the TPM work. But first all employees should be trained in order to have the same direction/behavior.

  • 27.
    Andersson, Roy
    et al.
    Högskolan i Borås, Institutionen Ingenjörshögskolan.
    Manfredsson, Peter
    Högskolan i Borås, Institutionen Textilhögskolan.
    Torstensson, Håkan
    Högskolan i Borås, Institutionen Textilhögskolan.
    How to Integrate Suppliers by Training in Lean Thinking2013Conference paper (Refereed)
    Abstract [en]

    Purpose: Much research has addressed how to implement lean in a focal company, but little has been published about how to integrate suppliers in strategies and the focal company’s culture, such as lean production or lean thinking. The purpose of the article is to investigate if suppliers can become more integrated in the supply chain by training in lean thinking at the focal company and to explain a possible structure of the training.

    Design/methodology/approach: A multiple-case study has been conducted of the focal com- pany and five of its supply companies. The findings are supported empirically by on-site interviews and by observations, as well as by a binomial two-proportion test that was used to analyse the statistical data of the delivery precision.

    Findings: While the training programme does not show a conclusive result for the supply chain, it has made a difference for all participating suppliers. In most cases the training programme was a trigger that started or boosted the internal work with continuous improvements. In some cases it helped create structured ways of working and improved the internal production flows.

  • 28.
    Andersson Schaeffer, Jennie
    et al.
    Mälardalens högskola, Innovation och produktrealisering.
    Jackson, Mats
    Mälardalens högskola, Akademin för innovation, design och teknik.
    Spatial design supporting the management of radical improvements within the manufacturing industry2013In: Proceedings of the 19th international conference on engineering Design, Seoul, Korea, Dem. Republic of: the Design Society , 2013, p. 129-138Conference paper (Refereed)
    Abstract [en]

    It is important for the manufacturing industry to become more innovative. Doing what we always have done is not enough. External pressure and the required speed of change, requires industry to improve the management of incremental and radical improvement work. There is thus a need for new methods, tools, and processes to improve the innovative capabilities. In this paper we discuss the use of spatial design to support the management of radical improvement within the manufacturing industry. The designs of the physical spaces are in the paper presented as frames that are cultivating, facilitating and enabling radical improvement without imposing a regime of control and forced change. The spatial design enables the process and contributes to an ecosystem supporting radical improvement. To better manage radical improvement processes, one option suggested in this paper is to create five dedicated places - five enabling frames - for five phases in a radical improvement process, firstly to bring attention to the different phases of the process and secondly to support the actions in each part.

  • 29.
    André, Felix
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Effektivisering av lagerprocess kopplat till kundbehov2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 30.
    André, Samuel
    Jönköping University, School of Engineering, JTH. Research area Product Development - Computer supported engineering design.
    Towards a Platform Approach Supporting the Interface Between Technology - and Product Development2016In: Proceedings of the DESIGN 2016 14th International Design Conference, Dubrovnik, May 16-19, 2016. / [ed] Marjanović, D., Štorga, M., Pavković, N., Bojčetić, N., Škec, S., The Design Society, 2016, p. 1987-1996Conference paper (Refereed)
    Abstract [en]

    The separation of technology development (TD) and product development (PD) is adding to the challenge that suppliers face. They are to conduct long term TD and at the same time tailor products when the order arrives. This paper proposes a platform approach in order to describe some conceptual knowledge. An example from the automotive business where early simulations of concepts are performed during TD is presented. The focus is on how these simulations can support the transfer of knowledge from TD to PD and how they are to be described in order to communicate the technology’s ability to adapt.

  • 31.
    André, Samuel
    et al.
    Jönköping University, School of Engineering, JTH, Product Development. Jönköping University, School of Engineering, JTH. Research area Product Development - Computer supported engineering design.
    Elgh, Fredrik
    Jönköping University, School of Engineering, JTH, Product Development. Jönköping University, School of Engineering, JTH. Research area Product Development - Computer supported engineering design.
    Modeling of transdisciplinary engineering assets using the design platform approach for improved customization ability2018In: Advanced Engineering Informatics, ISSN 1474-0346, E-ISSN 1873-5320, Vol. 38, p. 277-290Article in journal (Refereed)
    Abstract [en]

    Original equipment suppliers (OES) that develop unique products are continuously faced with changing requirements during both the quotation and product development processes. This challenge is a different reality from companies that develop off-the-shelf products for the end consumer, which use fixed specifications and where product platforms have been a strong enabler for efficient mass customization. However, product platforms cannot adequately support companies working as OES. The reason is that a high level of customization is required which means that interfaces cannot be standardized, the performance is not negotiable, requirements are not initially fixed, and the specific system interacts with, is affected by, or affects other systems that are simultaneously developed in a transdisciplinary environment. The design platform (DP) approach provides a coherent environment for heterogeneous and transdisciplinary design resources to be used in product development by supporting both designing and off-the-shelf solutions. This research describes the introduction, application and further development of the DP approach at an automotive supplier to support the development of customized solutions when traditional modularity or platform scalability do not suffice. A computer tool called Design Platform Manager has been developed to support the creation and visualization of the DP. The support tool has a connection to a product data management database to link the platform model to the various kinds of engineering assets needed or intended to support variant creation. Finally, the support tool was evaluated by the case company representatives showing promising results. 

    The full text will be freely available from 2020-08-08 00:00
  • 32.
    André, Samuel
    et al.
    Jönköping University, School of Engineering, JTH, Product Development. Jönköping University, School of Engineering, JTH. Research area Product Development - Computer supported engineering design.
    Elgh, Fredrik
    Jönköping University, School of Engineering, JTH, Product Development. Jönköping University, School of Engineering, JTH. Research area Product Development - Computer supported engineering design.
    Johansson, Joel
    Jönköping University, School of Engineering, JTH, Product Development. Jönköping University, School of Engineering, JTH. Research area Product Development - Computer supported engineering design.
    Stolt, Roland
    Jönköping University, School of Engineering, JTH, Product Development. Jönköping University, School of Engineering, JTH. Research area Product Development - Computer supported engineering design.
    The design platform – a coherent platform description of heterogeneous design assets for suppliers of highly customised systems2017In: Journal of engineering design (Print), ISSN 0954-4828, E-ISSN 1466-1837, Vol. 28, no 10-12, p. 599-626Article in journal (Refereed)
    Abstract [en]

    Companies developing highly customised products are continuously faced with fluctuating requirements during the early and late stages of the product development (PD) process. This differs from companies that develop end-consumer products, which uses fixed specifications and where product platforms have been a successful enabler for efficient customisation. However, in the past, product platforms have not been able to fully support companies working in an engineer-to-order business environment. This article outlines the results from a three-year collaborative research project between academics within the area of engineering design and practitioners from the engineer-to-order industry. The research introduces a design platform (DP) that aims to support the development of customised products when traditional platform concepts do not suffice. The platform approach provides a coherent environment for heterogeneous design assets to be used in PD by supporting both the design activity and the finished solutions. The needs and abilities regarding such a platform were investigated through a series of interviews and workshops at four companies. Then, the DP was modelled and support tools were developed. Finally, company representatives evaluated the complete DP and its applications, reporting promising results.

  • 33.
    Arbabi, Mohammad Reza
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Investigation of volume and product mix flexibility in batch production2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Today’s business environment involves a globalised market, greater than before competition and more challenging customers, all factors which contribute to higher uncertainty and variability. Manufacturing flexibility is becoming more important in order to cope with the complexity of products through frequency volume changes and evaluations of the technological requirements of products.

    The research for this thesis was performed within a subcontractor company, Laserkraft AB, who focus on laser cutting, turning and welding processes in their production. The company utilises a variety of volume and product mixes, which is in correlation with the objective of this study.

    The purpose of this research was to investigate the common source drivers in order to achieve volume and product mix flexibility on batch production systems. First, a literature review was conducted in order to build the framework of common source factors between volume and product mix flexibility. Then, a single case study was conducted to examine the outcomes of framework on batch production. In this case, qualitative techniques included interviews and an observation of the shop floor.

    The analysis of this study was conducted with empirical research on a case study and theoretical framework from literature. From the literature stand point; it was found that flexible manufacturing competencies (FMC) and strategic flexibility approaches are two main elements to determine internal source drivers between volume and product mix flexibility. The groups of common source factors were then analysed with respect to characteristics of batch production systems at the chosen company.

    A comparison between the framework and the empirical findings identified source drivers in order to achieve volume and product mix flexibility. Due to the limited nature of the study, all source factors that have an impact on achieving volume and product mix flexibility might not be presented in this thesis. Besides, it is difficult to generalise the result on a single case study.

    As a result, each organisation and industry refers to their product, process and type of layout, and requires a group of practices to achieve volume and product mix flexibility. This thesis concludes with the top three common source factors between volume and product mix flexibility such as: set-up time reduction, multi-trained employees and advanced manufacturing technology.

  • 34.
    Arfwedson, Daniel
    et al.
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Isendahl, Johan
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Kartläggning och effektivisering av omställningsprocessen2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In a global market, the competition is strong and companies are competing against each other all the time. By obtaining competitive advantages such as flexible production, short delivery times, quality and low prices, a company can attract major customers and create major advantages compared to their competatives.

     

    Kongsberg Automotive AB is a global company operating in the automotive industry and distributing goods to several famous brands. Due to high demands from clients, Kongsberg is working with continuous improvement which helps the company to develop and improve their effectiveness. One problem the company has had under observation for a while is their setup process. The setup process has not had a major change since 1996 when the company introduced a workstation that prepares tools for the production. The company has decided to investigate further into the setup process to see which improvements are possible to carry out the setup process. The investigation covered the setup time reduction through an analysis made by using the SMED-method in the program AviX SMED.

     

    AviX SMED uses video-recorded material were the most representative setup was used as an object. The program offers the possibility to analyze the video-recorded material using categorizations and by splitting up the various elements of the set of workers available. SMED is an elaborate method of setup time reduction which comes from Japan in the 1950´s and follows a number of different steps that should be taken in order to get the desired results.

     

    The investigation resulted in several suggestions for improvement where two different proposals for action was developed. The proposed actions were developed with a main focus on "with investments" and "without investment". The proposal without invesments was used as suggested actions to Kongsberg because investments were not the focus. The ”non investment”-suggestion reduced setup time on average by 29 % in four of the analysed setups. Kongsberg can continue to reduce setup time by technical efficiency but that requires more profound analysis of how complex features work and interact with each other.

  • 35.
    Arnesson, Fredrik
    et al.
    Jönköping University, School of Engineering.
    Bengtsson, Johan
    Jönköping University, School of Engineering.
    Usability Evaluation of a Production System Development Framework: A Meta-Study Performed on the Use of a Production System Development Framework in the Development of a New Production System at Xylem2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Today’s competitive global market has placed companies under great pressure and the focus on production systems has been more prominent. Although there are several claimed benefits with using frameworks in the development of production systems, companies are reluctant to use these. Consequently, a relevant question formulation is: Are frameworks in the development of production systems usable?

    The purpose with this thesis work was therefore to evaluate the usability of production system development frameworks (PSDFs) in practice. In order to achieve this purpose, two research questions were established:

    RQ1.  How can usability of frameworks be evaluated?

    RQ2.  How does the use of a framework contribute to the development of a new production system?

    In order to answer the posed research questions, Bellgran and Säfsten’s PSDF was used in the production system development (PSD) process of a new production system at Xylem. Based on the PSD process, a meta-study was performed to evaluate the practical usability of the PSDF. Usability was defined and evaluated based on the five usability terms learnability, memorability, efficiency, effectiveness, and satisfaction.

    The result showed that all the five usability terms contribute to the usability evaluation of PSDFs. However, memorability was considered difficult to use on only one study since the user has to think a step further and make a qualified guess to answer if it is possible to memorize a framework. Therefore, it was considered memorability is only appropriate to use in a multiple study.

    The results also showed that Bellgran and Säfsten’s PSDF contributed most in the beginning of the PSD process by putting emphasis on the planning phase and providing a structure to follow. Due to the nature of a framework (i.e., to serve as a guide for structures to follow), this was not unexpected. However, the contributions from a structure or plan are hard to exactly distinguish. Since companies most often want tangible and accurate evidences, frameworks’ vague contributions are considered to be a major reason to why companies do not use frameworks more frequently. 

  • 36.
    Asadi, Narges
    et al.
    Mälardalens högskola, Innovation och produktrealisering.
    Fundin, Anders
    Mälardalens högskola, Innovation och produktrealisering.
    Jackson, Mats
    Mälardalens högskola, Innovation och produktrealisering.
    Exploring optimal flexible assembly systems2013Conference paper (Refereed)
    Abstract [en]

    As a prominent part of manufacturing system, assembly system provides a platform for increasing efficiency while delivering various market demands. However, due to the lack of a unified and clear definition of flexibility in assembly systems, the recognition of optimal flexibility in assembly system without clashing with efficiency still remains elusive. In order to establish a sound basis to discuss the characteristics of flexible assembly and to address the question of reaching optimal flexibility, this paper makes use of a case study performed in five manufacturing plants. The study proposes a clear definition for flexible assembly and identifies six enablers for flexibility in assembly systems. Further in this research the applicability of few different types of manufacturing flexibility in assembly system is investigated. The paper concludes with discussions and suggestions for future research.

  • 37.
    Asadi, Narges
    et al.
    Mälardalens högskola, Innovation och produktrealisering.
    Fundin, Anders
    Mälardalens högskola, Innovation och produktrealisering.
    Jackson, Mats
    Mälardalens högskola, Innovation och produktrealisering.
    The Essential Constituents of Flexible Assembly Systems: A Case Study in the Heavy Vehicle Manufacturing Industry2015In: Global Journal of Flexible Systems Management, ISSN 0972-2696, Vol. 16, no 3, p. 235-250Article in journal (Refereed)
    Abstract [en]

    The major challenge of today’s manufacturing industry in tackling demands for a wider range of products with short life-cycle times and meeting customisation requirements has drawn considerable attention towards flexibility in manufacturing systems. As a prominent part of a manufacturing system, an assembly system provides a platform for increasing efficiency while delivering various market demands. However, owing to the dearth of a unified and clear definition of the constituents of flexible assembly systems, in both theory and practice, the recognition of flexibility in assembly systems still remains elusive. In order to establish a sound base for discussing the constituents of flexible assembly systems, this research paper explores the literature concerning flexibility in manufacturing and assembly as well as in flexible systems management domains. To reflect an industrial perspective, a multiple case study of five manufacturing plants in the heavy vehicle industry is performed. By identifying six essential constituents of flexibility in assembly systems, the study proposes a clear definition of flexibility in assembly systems which mainly revolves around mix and volume flexibility. To further enhance the findings, the compatibility of a few previously identified types of manufacturing flexibility in the assembly systems of the case plants is investigated and additional dimensions of flexibility in assembly systems are revealed. Finally, the implications for theory and practice as well as suggestions for future research are discussed.

  • 38.
    Asadi, Narges
    et al.
    Mälardalens högskola, Innovation och produktrealisering.
    Jackson, Mats
    Mälardalens högskola, Innovation och produktrealisering.
    Fundin, Anders
    Mälardalens högskola, Innovation och produktrealisering.
    Drivers of complexity in a flexible assembly system - A case study2015In: 48th CIRP International Conference on Manufacturing Systems (CIRP CMS 2015): Key Enabling Technologies for the Factories of the Future: Proceedings of a meeting held 24-26 June 2015, Ischia, Italy / [ed] Roberto Teti, Elsevier, 2015, p. 189-194Conference paper (Refereed)
    Abstract [en]

    Various ever-changing market demands have propelled manufacturing companies to offer product variety in an efficient and timely manner. Assembly as a key stage of manufacturing process is used to realise product variety through establishing mixed-product assembly systems. Although establishing a flexible mixed-product assembly system which both offers product variety and absorbs market demands fluctuation is pivotal for maintaining competitive edge in certain industries such as vehicle manufacturing, it is also considered an elaborate task which calls for further investigation. In this paper, complexity in a flexible mixed-product assembly line is investigated and the key drivers of complexity are identified. To fulfil the research objective, a case study during the pilot implementation of a flexible mixed-product assembly concept in a heavy vehicle manufacturing company has been conducted. The results indicate the key factors concerning assembly process, product design, and information and communication technology (ICT) which contribute to complexity in the flexible assembly system. The paper concludes with an outlook for possible future research.

  • 39.
    Asadi, Narges
    et al.
    Mälardalens högskola, Innovation och produktrealisering.
    Jackson, Mats
    Mälardalens högskola, Innovation och produktrealisering.
    Fundin, Anders
    Mälardalens högskola, Innovation och produktrealisering.
    Handling product variety in a mixed-product assembly line: A case study2015In: Proceedings of the International Conference on Engineering Design, ICED, Volume 4, Issue DS 80-04 / [ed] Cantamessa M.,Graziosi S.,Weber C.,Cascini G.,Husung S.,Marjanovic D., The Design Society, 2015, p. 41-50Conference paper (Refereed)
    Abstract [en]

    In today’s fast-changing global market, using mixed-product assembly lines (MPALs) and mixed-model assembly lines (MMALs) allows manufacturing companies to be flexible and to maintain their competitive edge through product variety. Balancing and sequencing issues have been recognized as the main challenges of MPALs and MMALs, but other practical needs of MPALs remain unclear. Recognizing the practical needs of MPALs helps in identifying related requirements for product design, leading to products that closely align with the MPAL concept. The objective of this paper is to offer an industrial perspective on the needs of MPALs and to identify its requirements vis-à-vis product design. To achieve this objective, a single real-time case study in a heavy-vehicle-manufacturing company has been performed. The results from this industrial case study suggest that in order to handle product variety in MPALs and to reduce the related complexity, certain dimensions of flexibility need to be created in the assembly system, and requirements related to product design should be considered simultaneously in order to support assembly processes.

  • 40.
    Asadi, Narges
    et al.
    Mälardalens högskola, Innovation och produktrealisering.
    Jackson, Mats
    Mälardalens högskola, Innovation och produktrealisering.
    Fundin, Anders
    Mälardalens högskola, Innovation och produktrealisering.
    Identification of the causes of complexity in mixed-product and mixed-model assembly lines2015Conference paper (Refereed)
    Abstract [en]

    The increasing demands for product variety have directed manufacturing companies towards accommodating flexibility by establishing mixed-product and mixed-model assembly lines. However, since greater variety leads to increased complexity, establishing these assembly lines becomes complicated. By conducting a case study, this paper investigates the causes of complexity and the applicability of assembly instructions in one mixed-product and four mixed-model assembly lines in a heavy vehicle manufacturing company. The results indicate a set of causes for complexity and highlight the significance of assembly instructions, as the practical implications for development of flexible assembly systems and design of products closely aligned with them.

  • 41.
    Asadi, Narges
    et al.
    Mälardalens högskola, Innovation och produktrealisering.
    Schedin, Joel
    Mälardalens högskola, Innovation och produktrealisering.
    Fundin, Anders
    Mälardalens högskola, Innovation och produktrealisering.
    Jackson, Mats
    Mälardalens högskola, Innovation och produktrealisering.
    Considering assembly requirement specifications in product development: identification and approach2014In: FAIM 2014 - Proceedings of the 24th International Conference on Flexible Automation and Intelligent Manufacturing: Capturing Competitive Advantage via Advanced Manufacturing and Enterprise Transformation, Curran Associates, Inc., 2014, p. 969-976Conference paper (Refereed)
    Abstract [en]

    Due to the major advantages such as reduced time to market and improved quality at lowered cost, the principles of design for assembly capabilities and concurrent engineering are of great significance when developing new products. However, identifying assembly requirement specifications and considering them in New Product Development (NPD) in a timely manner, while securing efficiency and robustness of assembly processes, still remains a challenging task. In presenting a case study of an NPD project in a manufacturing company, this article focuses on the process of capturing and incorporating the requirements related to the assembly system during the early phases of NPD. Further, the results of the research study indicate the different assembly requirements in the case company and pinpoint the challenges in practices involved in handling them. The assembly requirements identified in this research reflect some of the challenges encountered in handling the requirements, through the investigated requirement practice. Based on the results, the issues of when and how to consider the assembly requirements are highlighted in the conclusions and suggestions for future research are made.

  • 42.
    Ascic, Ivana
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Ascic, Josip
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Competitive manufacturing in a high cost environment2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: The movement of production to low cost countries has been a prominent trend during recent decades. The offshoring trend has primarily been cost motivated and has had a negative impact on domestic economic growth. Manufacturing firms operating in a high cost environment must strive to develop core capabilities to enhance competitiveness. In this study, the focus is on operations capabilities and improvement areas in a specific context (i.e. high cost environment).

    Purpose: The purpose of the study is to evaluate critical operations capabilities and improvement areas for competitive manufacturing in a high cost environment.

    Method: The research process is based on the evaluation of an existing framework of operations capabilities in a high cost environment. The study adopts a multiple case study approach in which three Swedish manufacturing firms are evaluated. The data collection was conducted through a quantitative part (i.e. questionnaire) and a qualitative part (i.e. workshop discussion).

    Findings: The findings revealed that 16 operations capabilities and ten improvement areas were considered critical in a high cost environment. Four critical capabilities (i.e. total cost, productivity, conformance and customization flexibility) are more prominent and appear in all three cases. Two critical improvement areas, total cost and dependability, are more prominent and have a higher occurrence.

    Implications: The practical implication of the study provides firms with an overview and better understanding of critical operations capabilities and potential improvement areas in a high cost environment. The theoretical implication of the study is that firm characteristics (e.g. size and position in the supply chain) influence the importance of each capability.

  • 43.
    Ask, Andréas
    et al.
    Mälardalens högskola, Institutionen för innovation, design och produktutveckling.
    Jackson, Mats
    Mälardalens högskola, Akademin för innovation, design och teknik.
    Factory-in-a-Box: An Enabler to Realize Mass Customization2006In: Proceedings of the international conference on agile manufacturing, ICAM 2006, 2006, p. 44-54Conference paper (Refereed)
  • 44. Axelsson, Jan
    et al.
    Karltun, Johan
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    RULA: en metod för egenutvärdering av arbetsställningar och risker1995Report (Other (popular science, discussion, etc.))
  • 45.
    Baharmast, Amir Reza
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Exploring purchasing flexibility and its sources: Systematic literature review Exploratory case study2016Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
    Abstract [en]

    Purpose – Several arrays of literature have studied flexibility at different levels of a supply chain in order to define and conceptualise supply chain flexibility (SCF). Purchasing function is the part of a firm that has a crucial contribution in achieving flexibility on the upstream of a supply chain. The purpose of this study is to explore purchasing flexibility and its sources (how flexibility is achieved) in manufacturing companies. In this regard, the study answers two questions: 1. How is purchasing flexibility defined?, 2. How can manufacturers achieve purchasing flexibility?

    Methodology – A systematic literature review was conducted and a total number of 40 academic papers were analysed to define purchasing flexibility and identify its sources in manufacturing companies. Following the systematic literature review, a case study was conducted to explore the purchasing flexibility and its sources in a manufacturing company.

    Findings – The results have described the different definitions used in the literatures to address the purchasing flexibility. Results have shown that different sources of purchasing flexibility are either attributes of the suppliers network or are the result of the purchasing decisions.

    Study delimitations – This study has focused on manufacturing firms. The systematic literature review was performed on English academic articles in major academic databases, which were accessible through Jönköping University network.

    Contributions – The main contribution of this study is taking the systematic approach to identify sources of purchasing flexibility spread in the literature. The exploratory case study confirms that majority of sources are used by the case company to increase the purchasing flexibility. The study serves as a good tool for practitioners by gathering and compiling a list of sources for purchasing flexibility.

    Keywords – Purchasing, supply chain, flexibility, upstream, manufacturing

  • 46.
    Banavara Srikanth, Karthik
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Shetty, Savin
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    DEVELOPMENT OF ASSESSMENT CRITERIA FOR RECONFIGURABILITY IN A MANUFACTURING SYSTEM2018Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
    Abstract [en]

    To survive in the global market the manufacturing companies need to meet the cus-tomer demands quickly and effectively. Therefore, lot of companies are striving to overcome the demand fluctuation and uncertainty. RMS is a concept which handles uncertainty easily by running the product mix and varying the level of volume accord-ing to the requirement. The reconfigurability level of manufacturing system is as-sessed by evaluating the criteria affecting the characteristics of the system.The characteristics of reconfigurability are scalability, customization, convertibility, modularity, integrability and diagnosability. A RMS achieves quick and cost effective changes through customization and convertibility, it handles volume variations through scalability. These characteristics are achieved with the help of modularity and integrability. A detailed assessment of a manufacturing system based on these charac-teristics will indicate its level of reconfigurability. Hence assessment of a manufactur-ing system for reconfigurability becomes necessary in the current turbulent market conditions.This research presents a method to assess the reconfigurability in a manufacturing system. The research is divided into two parts where, in the first part a qualitative as-sessment method is developed, and it is then tested in the second part. The study uses two research methods namely literature review and case study. Based on literature re-view assessment criteria for each characteristic of reconfigurability are listed and an assessment method is developed. The assessment method uses a radar chart to repre-sent the level of reconfigurability. This is supported with a case study where the de-veloped assessment method is tested and validated.

  • 47.
    Bardh, Nicklas
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Abelsson, Rickard
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Identifikation av produktionsstörningar och obalanser vid tillverkning av golvskenor2006Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    Our report procedure identification of instability and disturbance in an automatic manufacturing line of processing and assembling of chair sliding rails at Sapas manufacturing department in Vetlanda.

    To obtain a stabile ground we have mapped the material flow to receive a comprehensive view and to visualise connections.

    We have examined cycle times at different stations in purpose to identificate bottlenecks. The result of our examination showed that the bottleneck of the line was the brush station. This leads to that the expected bottlenecks identificated by Sapa gets a delay time and by that a longer cycle time.

    Interruptions has a clear negative influence at the line performance so we have also assemble data through the operators report list and compiled these in order to find out the interruptions effect on the line. The outcome during our assembled period was that the reported interruptions corresponded about 30 percent of the total available production time. This has a clear negative effect on the line productivity and efficiency as we have calculated in order to get the present status.

  • 48.
    Barzenji, Swara
    et al.
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Västfält, Anders
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Utveckling av produktionslina2009Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The company is currently in a stage of improvement and has therefore taken the help of students at School of Engineering, Jonkoping University. The current production is batch, production layout is fixed. A bottleneck is created after the first station which leads to large efficiency loss.  

    The meaning of this report was to provide a layout suggestion with balanced workstations to a new production line. The conditions were that the production line would be one-way, driven by customers order and meet a demand of 40 products per week.  

    In order to achieve a result, different methods and tools have been used, these have been time studies, video recording, case studies and interviews with assemblers and supervisor. Theoretical background has been helpful for the choice of methods and work implementation.  

    The result of this work was a series of solutions based on the company’s strategy and the methods that has been used. Solution A uses three stations with the idea to create a suction through the flow and smooth line balancing. Solution B also had three stations with the basic concept to be able to adjust the number of stations. The number of stations can be selected when the demand change between two, three or six stations. The last Solution C meaning was to create a production line where the operations of the same character had their own place. This solution has five stations, creating a large efficiency loss.  

    The conclusion is that Layout proposal B is best for the company. This is because it is the most flexible proposal when it is possible to adapt to a demand from 20- 100 products /week. Proposal for methods development and opportunities for improvement in production can be found in the conclusion and discussion. 

  • 49.
    Batangouna, Steve Jehu
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Assembly operators and visualization of information contributions on performance measurements.: Case Study at Dalvich Optic2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This study analyses the way information regarding performance measurements is shared among employees working at the shop floor at Dalvich Optic in Sweden. This study is conducted because many companies failed to implement a system that facilitates daily performance measurements as they neglected the assembly operators’ role in decision making process. Companies focus on measuring wrong parameters and visualize information about performance measurements in wrong way. The purpose of this study is to demonstrate that new Information Technology (IT) artefacts are designed by experts for use by experts. IT artefacts are designed without taking into account assembly operators’ skills, education and experiences. Thus, limiting assembly operators’ ability to achieve daily production goals. Therefore, this study highlights the role of both assembly operators and visualizing information at the shop floor and their impact on performance measurements and productivity.

     

    After analysis, this study develops a new IT artefact. The implementation of the new IT artefact at the company leads to a new leadership where management meet assembly operators in a daily basis, creating good environment for direct communication. As a result, the company increased its production by 50 percent compared to the previous year and it has doubled the production compared to 2010. The information about production status became visible and accessible to all employees since the information displayed through the new IT artefact was monitored in an easy-to- understand way. The presentation and visualization of information regarding productivity offered assembly operators and managers the possibility to react quickly when any disparity concerning goal achievement arose. As a result, the new IT artefact enhances assembly operators’ participation at the manufacturing process as well. Assembly operators took active role on manufacturing process since information about performance measurement was compiled and maintained by themselves; thus, positively influencing production outcomes. Furthermore, a new IT artefact created an arena where employees contributed to continuous improvements and problem-solving at work.

     

    This study was conducted during a period of six months. Data was gathered through observations, interviews, and meetings with managers and assembly operators at a manufacturing plant. Furthermore, data from books, articles, and journals helped in analysing the way information was visualized and communicated in a manufacturing plant. ADR, Action Design Research method was used to design a new and simple IT artefact that considers employees’ skills, experiences and education.

     

  • 50.
    Bellgran, Monica
    et al.
    Mälardalens högskola, Akademin för innovation, design och teknik.
    Bruch, Jessica
    Mälardalens högskola, Akademin för innovation, design och teknik.
    Rösiö, Carin
    Jönköping University, School of Engineering, JTH. Research area Industrial Production.
    Wiktorsson, Magnus
    Mälardalens högskola, Akademin för innovation, design och teknik.
    Decision support for production localization: Process, activities and localization factors2013Conference paper (Refereed)
    Abstract [en]

    Traditional production location decisions are mainly based upon economic factors while factors that facilitate decision makers in selecting the most suitable production location in terms of operations performance are rarely considered. Therefore, this paper presents a developed decision support for production localization that emphasises operational factors to be considered in the decision making. The research methodology combines a literature study with a multiple case study method. The findings are synthesised into a five phase decision process for making production localization decisions in practice. For each of these phases, key activities with related tools and expected output are developed.

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