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  • 1.
    Popovic, Djordje
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Off-site manufacturing systems development in timber house building: Towards mass customization-oriented manufacturing2018Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    The need for housing in Sweden has been showing a constant increase over the past couple of years. However, this situation might change in 2018 since there are indications that the increase in demand will reach its peak. On the other hand, the use of timber as a load bearing structure has become more popular in the multi-family house building sector. It is competing with concrete and steel frames, and its market share might even reach 50% by the year of 2025. Adding the involvement of customers in house design decisions and a high level of customization, the conclusion is that timber house building must continue the development towards mass customization. There is a lack of knowledge on how mass customization is developed and implemented regarding off-site manufacturing systems. In this thesis, a contribution is made to manufacturing system development in timber house building by proposing a novel approach to aligning off-site manufacturing systems to the requirements of production strategy, market needs, product design, and manufacturing processes. The proposed conceptual framework is a synthesis of the knowledge gained from three empirical studies and different methods found in theories of changeable manufacturing systems, mass customization, and manufacturing system development. The research purpose addressed by the presented work, is to increase the knowledge on how the development potential of off-site manufacturing systems can be identified in mass customization-oriented timber house building. Case study research was applied to gather the empirical data. The data collection and analysis methods used in the empirical studies can be useful when discussing the potential improvements. However, these data are not comprehensive enough in terms of presenting a holistic view of off-site manufacturing and consideration of the market as well as variation in product and processes. Therefore, a comprehensive set of requirements is proposed in the conceptual framework together with a step by step description of how the development potential of off-site manufacturing systems can be identified.

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  • 2.
    Popovic, Djordje
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Rösiö, Carin
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Product and manufacturing systems alignment: a case study in the timber house building industry2019In: 10th Nordic Conference on Construction Economics and Organization / [ed] Irene Lill & Emlyn Witt, Emerald Group Publishing Limited, 2019, p. 357-364Chapter in book (Refereed)
    Abstract [en]

    Purpose

    The purpose of the study was to investigate the alignment between current product and manufacturing systems and how it could be achieved.

    Design/Methodology/Approach

    Case study research method was chosen for the collection and analysis of empirical data. The data was of qualitative nature and was collected using research techniques such as observations through video recordings of processes, documents and open and semi-structured interviews.

    Findings

    The variation of outer side sub-element of the exterior wall element was found to not be aligned with its corresponding assembly. A hybrid assembly of outer side sub-elements characterised by flexibility and reconfigurability can be developed.

    Research Limitations/Implications

    The study is limited to the exterior wall element and corresponding manufacturing system. Practical Implications The presented approach was formulated with the aim to be used both for the analysis of existing products and manufacturing systems as well as for the design of new manufacturing systems.

    Originality/Value

    So far, this is the first study in the context of timber house building where the alignment between product and manufacturing systems was investigated by considering product variety and flexibility of manufacturing systems.

  • 3.
    Salim, Roaa
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Exploring aspects of automation decisions: A study in the Swedish wood products industry2017Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    The wood products industry is important to Sweden's prosperity, and is currently facing several challenges by increased global competition. To avoid the gradual decline of the industry’s contribution to the country’s revenues and employment opportunities, the Swedish wood products industry needs to increase the proportion of the raw material that is refined. New and efficient manufacturing technologies are essential to support this development. The implementation of automation in manufacturing needs to be supported by conscious and well-defined strategies. However, currently, there is a lack of knowledge regarding automation decisions in this industry. Therefore, the purpose of this thesis is to increase knowledge regarding which aspects should be taken into account when automation decisions are considered in the wood products industry. Three research questions are addressed: (1) What is the current state of manufacturing operations in the wood products industry? (2) What are the potential opportunities for automation in the wood products industry? And (3) What challenges can arise from automation in the wood products industry?

    The results presented in this thesis are based on four research papers. The first paper provides an overview of the current state of manufacturing operations in the wood products industry. The second paper examined the impact of the raw material on manufacturing operations in the wood products industry. The third paper assessed how the levels of automation in manufacturing impact operational performance. The fourth paper examined automation opportunities and challenges to gain a better understanding of the reasoning behind automation decisions in the industry.

    In general, it is concluded that automation decisions in the wood products industry tend to be based on “gut feeling” and previous experience with automation rather than well-defined decisions and strategies. This is due to inadequate knowledge and familiarity with automation technologies in manufacturing. Furthermore, the findings showed that different aspects of manufacturing interact and impact each other. For this reason, it is essential to take into account other aspects of manufacturing when considering automation decisions.

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