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Heikkinen, T., Stolt, R. & Elgh, F. (2020). Incorporating Design for Additive Manufacturing in Multidisciplinary Design Automation – Challenges Identified. Computer-Aided Design and Applications, 17(5), 936-947
Open this publication in new window or tab >>Incorporating Design for Additive Manufacturing in Multidisciplinary Design Automation – Challenges Identified
2020 (English)In: Computer-Aided Design and Applications, ISSN 1686-4360, Vol. 17, no 5, p. 936-947Article in journal (Refereed) Published
Abstract [en]

One interesting method to take advantage of the particular capabilities of Additive Manufacturing is to utilize a combination of lattice-structures and topology optimization. This paper presents the results and experiences from attempting to incorporate these in an existing multidisciplinary design automation system within the aerospace industry. A combined state of art and practice is outlined with discussions regarding challenges in current commercial CAD tools, multidisciplinary design automation, and with respect to aerospace requirements.

Place, publisher, year, edition, pages
C A D Solutions, 2020
Keywords
Design for Additive Manufacture, Multidisciplinary Design Automation, Lattice-based structural Topology Optimization
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-47384 (URN)10.14733/cadaps.2020.936-947 (DOI)
Available from: 2020-01-14 Created: 2020-01-14 Last updated: 2020-01-14Bibliographically approved
Stolt, R., Elgh, F. & Jarfors, A. E. .. (2019). Challenges and Support when Introducing AM in HPDC Tooling. In: K. Hiekata, B. Moser, M. Inoue, J. Stjepandić & N. Wognum (Ed.), K. Hiekata, B. Moser, M. Inoue, J. Stjepandić & N. Wognum (Ed.), Transdisciplinary engineering for complex socio-technical systems: Proceedings of the 26th ISTE International Conference on Transdisciplinary Engineering, July 30 – August 1, 2019. Paper presented at 26th ISTE International Conference on Transdisciplinary Engineering, held at the University of Tokyo, Kashiwa Campus, July 30 – August 1, 2019, Japan (pp. 147-156). Amsterdam: IOS Press
Open this publication in new window or tab >>Challenges and Support when Introducing AM in HPDC Tooling
2019 (English)In: Transdisciplinary engineering for complex socio-technical systems: Proceedings of the 26th ISTE International Conference on Transdisciplinary Engineering, July 30 – August 1, 2019 / [ed] K. Hiekata, B. Moser, M. Inoue, J. Stjepandić & N. Wognum, Amsterdam: IOS Press, 2019, p. 147-156Conference paper, Published paper (Refereed)
Abstract [en]

When manufacturing tooling inserts for HPDC (High Pressure Die Casting), several manufacturing steps such as milling, heat treatment, electro discharge machining and finally surface treatment are involved. By instead manufacturing the insert by SLM (Selective laser melting), the process is expected to be quicker and with less material waste compared to the traditional manufacturing. Examples of other expected advantages is higher product variant flexibility and the possibility of making conform cooling channels, extending the die life. However, the insert is part of a die system involving many components. The insert cannot be designed and manufactured without considering the complete die system. This paper seeks how to integrate the insert design in the die assembly design. This is done via an example component and in cooperation with die manufacturing firms. The result is that the printing is a minor step of the total manufacturing process and that special design considerations needs to be taken for an SLM insert. New die concepts are needed that will minimise the amount of material, reduce the tolerance and surface demand and support the subdivision of the die into several printed parts.

Place, publisher, year, edition, pages
Amsterdam: IOS Press, 2019
Series
Advances in Transdisciplinary Engineering, ISSN 2352-751X, E-ISSN 2352-7528 ; 10
Keywords
SLM, Additive Manufacturing, Design, Tooling, Modular
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-46843 (URN)10.3233/ATDE190118 (DOI)978-1-64368-020-0 (ISBN)978-1-64368-021-7 (ISBN)
Conference
26th ISTE International Conference on Transdisciplinary Engineering, held at the University of Tokyo, Kashiwa Campus, July 30 – August 1, 2019, Japan
Available from: 2019-11-18 Created: 2019-11-18 Last updated: 2019-11-18Bibliographically approved
Stolt, R., Elgh, F. & Heikkinen, T. (2019). Design and Evaluation of Aerospace Components for SLM. In: K. Hiekata, B. Moser, M. Inoue, J. Stjepandić & N. Wognum (Ed.), K. Hiekata, B. Moser, M. Inoue, J. Stjepandić & N. Wognum (Ed.), Transdisciplinary engineering for complex socio-technical systems: Proceedings of the 26th ISTE International Conference on Transdisciplinary Engineering, July 30 – August 1, 2019. Paper presented at 26th ISTE International Conference on Transdisciplinary Engineering, held at the University of Tokyo, Kashiwa Campus, July 30 – August 1, 2019, Japan (pp. 147-156). Amsterdam: IOS Press
Open this publication in new window or tab >>Design and Evaluation of Aerospace Components for SLM
2019 (English)In: Transdisciplinary engineering for complex socio-technical systems: Proceedings of the 26th ISTE International Conference on Transdisciplinary Engineering, July 30 – August 1, 2019 / [ed] K. Hiekata, B. Moser, M. Inoue, J. Stjepandić & N. Wognum, Amsterdam: IOS Press, 2019, p. 147-156Conference paper, Published paper (Refereed)
Abstract [en]

Currently, the additive manufacturing process SLM (selective laser melting) is of high interest in the aerospace industry for the manufacture of jet engine components. This is driven by several factors such as reducing weight and minimizing the variation in the manufacturing process. In the paper, the state of practice in designing SLM parts is examined showing that there is plenty of opportunity to adapt designs to the process. However, this is often too time consuming in the early stages. By examining the state of art in SLM part design, the paper and identifies the variant specific cost drives that are proposed to be used to rank the manufacturability of different design alternatives for turbine frame aerospace components.

Place, publisher, year, edition, pages
Amsterdam: IOS Press, 2019
Series
Advances in Transdisciplinary Engineering, ISSN 2352-751X, E-ISSN 2352-7528 ; 10
Keywords
SLM, Additive Manufacturing, Aerospace, Design for Additive Manufacturing, DFAM, Manufacturability
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-46844 (URN)10.3233/ATDE190119 (DOI)978-1-64368-020-0 (ISBN)978-1-64368-021-7 (ISBN)
Conference
26th ISTE International Conference on Transdisciplinary Engineering, held at the University of Tokyo, Kashiwa Campus, July 30 – August 1, 2019, Japan
Available from: 2019-11-18 Created: 2019-11-18 Last updated: 2019-11-18Bibliographically approved
Raudberget, D., Elgh, F., Stolt, R., Johansson, J. & Lennartsson, M. (2019). Developing agile platform assets: exploring ways to reach beyond modularisation at five product development companies. International Journal of Agile Systems and Management (4), 311-331
Open this publication in new window or tab >>Developing agile platform assets: exploring ways to reach beyond modularisation at five product development companies
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2019 (English)In: International Journal of Agile Systems and Management, ISSN 1741-9174, no 4, p. 311-331Article in journal (Refereed) Epub ahead of print
Abstract [en]

The use of a product platform has been acknowledged as a strategic enabler for product family development and mass customisation. However, many companies struggle with adopting the common platform approach building upon pre-defined modules and components as it constrains the fulfilment of unique customer requirements and a rapid introduction of new technologies. These are the conditions under which manufacturing companies acting as suppliers operates, where unique solutions are delivered to different business customers, market segments or brands. This work reports the results from case studies of platform development conducted in collaboration with five product developing and manufacturing companies. The focus of this paper is on their initial states; including how they work with their product concept before a development project is started, the character of requirements and the adoption of product platforms. The main contribution of this work is a presentation of criteria on, and identification of, new platform elements termed design assets. These are introduced as a means to enable diverse types of resources to be reused in a company and a pragmatic way to bridge the gap between the physical products and the knowledge, tools and methods needed to realise these.

Place, publisher, year, edition, pages
InderScience Publishers, 2019
Keywords
modularisation, platform, customisation, supplier, design asset, platform element, industrial collaboration, case study, engineer-to-order, ETO.
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-47359 (URN)
Available from: 2020-01-13 Created: 2020-01-13 Last updated: 2020-01-13
Heikkinen, T., Stolt, R. & Elgh, F. (2019). Incorporating Design for Additive Manufacturing in Multidisciplinary Design Automation – Challenges Identified. In: Proceedings of CAD'19: . Paper presented at CAD'19, Singapore, June 24-26, 2019. (pp. 372-376).
Open this publication in new window or tab >>Incorporating Design for Additive Manufacturing in Multidisciplinary Design Automation – Challenges Identified
2019 (English)In: Proceedings of CAD'19, 2019, p. 372-376Conference paper, Published paper (Refereed)
Keywords
Design for Additive Manufacturing, Multidisciplinary Design Automation, Lattice-based structural Topology Optimization
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-46506 (URN)10.14733/cadconfP.2019.372-376 (DOI)
Conference
CAD'19, Singapore, June 24-26, 2019.
Available from: 2019-10-09 Created: 2019-10-09 Last updated: 2019-10-09Bibliographically approved
Hjertberg, T., Stolt, R. & Elgh, F. (2018). A tool for obtaining transparency and traceability in heterogeneous design automation environments. Computer-Aided Design and Applications, 15(4), 488-500
Open this publication in new window or tab >>A tool for obtaining transparency and traceability in heterogeneous design automation environments
2018 (English)In: Computer-Aided Design and Applications, ISSN 1686-4360, Vol. 15, no 4, p. 488-500Article in journal (Refereed) Published
Abstract [en]

Today, CAD-system are used for much more than just geometric modeling. They are complemented by various software and information sources forming a complete environment for handling all life-cycle aspects of the product. In such systems, the CAD-system works as a central hub. The software and information sources may be of various types making the system highly heterogenous. This presents problems with transparency and traceability in the system making long term management difficult. In this paper, a novel tool is presented to keep track of the dependencies between the various parts of such systems providing an overview and making it possible to predict the effect of proposed changes and facilitating long term management. The tool is tested in a highly heterogeneous environment at a manufacturer of aerospace components, with the result that the traceability is expected to increase at the expense of that time must be spent on defining dependencies and meta-information as the system is evolving.

Place, publisher, year, edition, pages
Taylor & Francis, 2018
Keywords
Design automation, dependency management, customization, traceability, transparency
National Category
Computer Systems
Identifiers
urn:nbn:se:hj:diva-38622 (URN)10.1080/16864360.2017.1419637 (DOI)2-s2.0-85041138977 (Scopus ID)
Funder
Knowledge Foundation
Available from: 2018-01-22 Created: 2018-01-22 Last updated: 2019-02-14Bibliographically approved
Stolt, R., Heikkinen, T. & Elgh, F. (2018). Integrating Additive Manufacturing in the Design of Aerospace Components. In: Margherita Peruzzini, Marcello Pellicciari, Cees Bil, Josip Stjepandić, Nel Wognum (Ed.), Transdisciplinary Engineering Methods for Social Innovation of Industry 4.0: Proceedings of the 25th ISPE Inc. International Conference on Transdisciplinary Engineering. Paper presented at 25th ISPE International Conference on Transdisciplinary EngineeringIntegrating (TE2018), 3-6 July, Modena, Italy (pp. 145-154). IOS Press
Open this publication in new window or tab >>Integrating Additive Manufacturing in the Design of Aerospace Components
2018 (English)In: Transdisciplinary Engineering Methods for Social Innovation of Industry 4.0: Proceedings of the 25th ISPE Inc. International Conference on Transdisciplinary Engineering / [ed] Margherita Peruzzini, Marcello Pellicciari, Cees Bil, Josip Stjepandić, Nel Wognum, IOS Press, 2018, p. 145-154Conference paper, Published paper (Refereed)
Abstract [en]

In the aerospace industry, Additive Manufacturing (AM) is quickly gaining ground. When optimizing the design of an AM component, all life-cycle aspects need to be considered. It is by no means limited to the classic weight / stiffness optimization of the topology alone. The AM component design must comply with an array of requirements on for example assembly, maintenance and inspection. In addition, there are the manufacturability requirements and constraints of the printing procedure itself, including component orientation and support structures. In this paper, a proposal on how to integrate the AM design of components with the design of the complete engine structure is presented. To find how the current design process is conducted, an interview study involving design and manufacturing experts has been made at an aerospace company, forming a base for the proposal. The result is that a primary design procedure for the AM component must be made as a separate step involving a limited set of design considerations prior to making a multidisciplinary evaluation of the proposed engine structure.

Place, publisher, year, edition, pages
IOS Press, 2018
Series
Advances in Transdisciplinary Engineering ; 7
Keywords
Additive Manufacturing, Product Development, Decision support, Topology optimization, Aerospace
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-41406 (URN)10.3233/978-1-61499-898-3-145 (DOI)000468226300015 ()2-s2.0-85057962006 (Scopus ID)978-1-61499-897-6 (ISBN)978-1-61499-898-3 (ISBN)
Conference
25th ISPE International Conference on Transdisciplinary EngineeringIntegrating (TE2018), 3-6 July, Modena, Italy
Available from: 2018-09-11 Created: 2018-09-11 Last updated: 2019-06-07Bibliographically approved
Stolt, R., André, S. & Elgh, F. (2018). Introducing Inserts for Die Casting Manufactured by Selective Laser Sintering. In: Dušan Šormaz, Gürsel Süer, F. Frank Chen (Ed.), Global Integration of Intelligent Manufacturing and Smart Industry for Good of Humanity: . Paper presented at 28th International Conference on Flexible Automation and Intelligent Manufacturing, FAIM 2018, Columbus, United States, 11 - 14 June 2018 (pp. 309-316). Elsevier
Open this publication in new window or tab >>Introducing Inserts for Die Casting Manufactured by Selective Laser Sintering
2018 (English)In: Global Integration of Intelligent Manufacturing and Smart Industry for Good of Humanity / [ed] Dušan Šormaz, Gürsel Süer, F. Frank Chen, Elsevier, 2018, p. 309-316Conference paper, Published paper (Refereed)
Abstract [en]

The advances in additive manufacturing (AM) for high grade steels has in some cases made it possible to manufacture die inserts for demanding processes like high pressure die casting (HPDC). However, several challenges remain before this becomes commonplace. There is still a need of secondary manufacturing steps on the insert after printing. Also, extensive design changes must be made on the die inserts to fully utilize the advantages of AM. Further, the die insert is only one of many parts needed in the die assembly. Much of the die manufacturing will still be done by conventional methods. In this paper, several companies involved in the manufacturing and use of dies for HPDC have been interviewed on that they think is the future role of AM in their business. The result is that the effect of just printing the inserts would will be quite limited at present. Bringing down the time spent on die manufacture is important since that time then could be spent on improving the manufacturability of the parts.

Place, publisher, year, edition, pages
Elsevier, 2018
Series
Procedia Manufacturing, ISSN 2351-9789 ; 17
Keywords
Additive Manufacturing, Design, Die, HPDC, Interview, Tool
National Category
Materials Engineering
Identifiers
urn:nbn:se:hj:diva-42938 (URN)10.1016/j.promfg.2018.10.051 (DOI)000471035200039 ()2-s2.0-85060478657 (Scopus ID)
Conference
28th International Conference on Flexible Automation and Intelligent Manufacturing, FAIM 2018, Columbus, United States, 11 - 14 June 2018
Available from: 2019-02-12 Created: 2019-02-12 Last updated: 2019-06-27Bibliographically approved
Elgh, F., Johansson, J., Stolt, R., Lennartsson, M., Heikkinen, T. & Raudberget, D. (2018). Platform Models for Agile Customization – What's Beyond Modularization?. In: Margherita Peruzzini, Marcello Pellicciari, Cees Bil, Josip Stjepandić, Nel Wognum (Ed.), Transdisciplinary Engineering Methods for Social Innovation of Industry 4.0: Proceedings of the 25th ISPE Inc. International Conference on Transdisciplinary Engineering. Paper presented at 25th ISPE International Conference on Transdisciplinary EngineeringIntegrating (TE2018), 3-6 July, Modena, Italy (pp. 371-380). IOS Press
Open this publication in new window or tab >>Platform Models for Agile Customization – What's Beyond Modularization?
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2018 (English)In: Transdisciplinary Engineering Methods for Social Innovation of Industry 4.0: Proceedings of the 25th ISPE Inc. International Conference on Transdisciplinary Engineering / [ed] Margherita Peruzzini, Marcello Pellicciari, Cees Bil, Josip Stjepandić, Nel Wognum, IOS Press, 2018, p. 371-380Conference paper, Published paper (Refereed)
Abstract [en]

Many manufacturing companies are suppliers that deliver unique solutions to different business customers. Intense quotation work, with a high demand on accuracy and quick response, and development projects executed in close collaboration with customers and other actors characterize these companies. The projects can run for years or a few weeks depending on the business. Changes of requirements are frequent and technology development required for improved functionality, sustainability and competitiveness. The use of a product platform has been acknowledged as a strategic enabler for product family development and mass customization. However, companies struggle with adopting the common platform approach building upon pre-defined modules and components as it constraints the fulfilment of unique customer requirements and the introduction of new technology at high pace. This work reports the results from case studies conducted in collaboration with four companies. They are in many ways different but face the same challenges when it comes to customization, fluctuating requirements and need of high pace in technology advancement. The focus of this paper is on their initial states; including how they work with their product concept before the customer entry point, the work that is initiated when an order is accepted, the character of requirements and the adoption of product platforms. Criteria on, and identification of, new platforms models, termed Design Assets, are presented followed by a mapping to the Design Platform concept pointing out areas upcoming work, both scientifically and at the companies.

Place, publisher, year, edition, pages
IOS Press, 2018
Series
Advances in Transdisciplinary Engineering ; 7
Keywords
Modularization, customization, supplier, engineer-to-order, design asset
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-41409 (URN)10.3233/978-1-61499-898-3-371 (DOI)000468226300037 ()2-s2.0-85057963770 (Scopus ID)978-1-61499-897-6 (ISBN)978-1-61499-898-3 (ISBN)
Conference
25th ISPE International Conference on Transdisciplinary EngineeringIntegrating (TE2018), 3-6 July, Modena, Italy
Available from: 2018-09-11 Created: 2018-09-11 Last updated: 2019-06-07Bibliographically approved
Elgh, F., Johansson, J., Poorkiany, M., Stolt, R. & Raudberget, D. (2018). Traceability of decisions in product realization processes of custom engineered products. In: Marjanović D., Štorga M., Škec S., Bojčetić N., Pavković N. (Ed.), DS92: Proceedings of the DESIGN 2018 15th International Design Conference: . Paper presented at 15th International Design Conference - DESIGN 2018, May 21st-24th, 2018, Dubrovnik, Croatia (pp. 249-260). The Design Society
Open this publication in new window or tab >>Traceability of decisions in product realization processes of custom engineered products
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2018 (Swedish)In: DS92: Proceedings of the DESIGN 2018 15th International Design Conference / [ed] Marjanović D., Štorga M., Škec S., Bojčetić N., Pavković N., The Design Society, 2018, p. 249-260Conference paper, Published paper (Refereed)
Abstract [en]

Custom engineered products require an engineer-to-order approach in development, quotation preparation and order processing. This work reports the result of a three-and-a-half-year project were the objective was to develop means for implementation and management of computer support for engineering design and production engineering of customized products. Efficient re-use is essential for success and decision is identified as the core concept to trace tasks executed, knowledge used, design rationale and artefacts developed throughout the product realization process.

Place, publisher, year, edition, pages
The Design Society, 2018
Series
Design, ISSN 1847-9073
Keywords
design knowledge, information management, process modelling, customisation, engineer-to-order
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-39618 (URN)10.21278/idc.2018.0505 (DOI)2-s2.0-85054981077 (Scopus ID)978-953-7738-59-4 (ISBN)
Conference
15th International Design Conference - DESIGN 2018, May 21st-24th, 2018, Dubrovnik, Croatia
Available from: 2018-06-01 Created: 2018-06-01 Last updated: 2019-02-14Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-6278-2499

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