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Asnafi, N., Shams, T., Aspenberg, D. & Öberg, C. (2019). 3D Metal Printing from an Industrial Perspective: Product Design, Production, and Business Models. Berg- und Huttenmännische Monatshefte (BHM), 1-10
Open this publication in new window or tab >>3D Metal Printing from an Industrial Perspective: Product Design, Production, and Business Models
2019 (English)In: Berg- und Huttenmännische Monatshefte (BHM), ISSN 0005-8912, E-ISSN 1613-7531, p. 1-10Article in journal (Refereed) Epub ahead of print
Abstract [en]

This paper is focused on automotive stamping tools and dies as well as the impact of 3D metal printing and metals related 3D-printing on design and production of such tools and dies. The purpose has been to find out the current industrial potential of 3D-printing as far as lead time, costs, shapes, material usage, metal piece size, surface roughness, hardness, strength, and machinability are concerned. The business transformational impact of 3D-printing is also addressed in this paper. The obtained results show that the lead time can be halved, the costs are somewhat higher, and the strength, hardness, surface roughness, and machinability of the 3D-printed metallic tools and dies are as good as those of the conventionally made. The maximum size of a metal piece that can be 3D-printed today by Powder Bed Fusion (PBF) is, in the best case, 500 mm × 500 mm × 500 mm. 3D-printing can also be used for the pattern to make the mold box in iron and steel casting. It is also possible to eliminate the casting pattern, since the mold box can be 3D-printed directly. All this has started to have a large business impact, and it is therefore of great significance to outline and execute an action plan almost immediately.

Place, publisher, year, edition, pages
Vienna: Springer, 2019
Keywords
3D-printing, Additive manufacturing, Metal, PBF, SLA, Automotive, Stamping, Tools, Dies, Design, Topology optimization, Production, Maraging steel, Business transformation
National Category
Manufacturing, Surface and Joining Technology
Identifiers
urn:nbn:se:oru:diva-72486 (URN)10.1007/s00501-019-0827-z (DOI)
Available from: 2019-02-15 Created: 2019-02-15 Last updated: 2019-02-28Bibliographically approved
Asnafi, N. (Ed.). (2019). The Second International Conference on Mechanical, Electric and Industrial Engineering, 25–27 May 2019, Hangzhou, China. Paper presented at The Second International Conference on Mechanical, Electric and Industrial Engineering, Hangzhou, China, May 25–27, 2019. Institute of Physics (IOP)
Open this publication in new window or tab >>The Second International Conference on Mechanical, Electric and Industrial Engineering, 25–27 May 2019, Hangzhou, China
2019 (English)Conference proceedings (editor) (Refereed)
Place, publisher, year, edition, pages
Institute of Physics (IOP), 2019
Series
Journal of Physics: Conference Series, ISSN 1742-6588, E-ISSN 1742-6596 ; 1303
National Category
Mechanical Engineering Electrical Engineering, Electronic Engineering, Information Engineering Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:oru:diva-76092 (URN)
Conference
The Second International Conference on Mechanical, Electric and Industrial Engineering, Hangzhou, China, May 25–27, 2019
Available from: 2019-09-05 Created: 2019-09-05 Last updated: 2019-09-09Bibliographically approved
Aspenberg, D. & Asnafi, N. (2019). Topology optimization of a U-bend tool using LS-TaSC. In: Proc. of the 12th European LS-DYNA Conference 2019: . Paper presented at The 12th European LS-DYNA Conference 2019, 14-16 May, 2019, Koblenz, Germany.
Open this publication in new window or tab >>Topology optimization of a U-bend tool using LS-TaSC
2019 (English)In: Proc. of the 12th European LS-DYNA Conference 2019, 2019Conference paper, Published paper (Refereed)
Abstract [en]

Metal additive manufacturing of stamping tool and die has a potential of reducing the lead time of forming processes, while at least not increasing the cost. As a part of a research project exploring the possibilities to use this type of tool manufacturing techniques, topology optimization using LS-TaSC has been utilized and one example case is presented in this paper, namely a U‑bend tool. This paper looks at the possible benefits from using nonlinear simulations in topology optimization, the effect of chosen target mass fraction value, the interpretations needed of optimal results and the effects on the formed specimen after using an optimized tool. Results show that accounting for the time dependent pressure on the tool, rather than applying a form of equivalent static load, gives a different optimal topology. Some manual interpretations of the optimal results are also recommended, as well as studying the effects on the specimen from removing material on the tool side.

National Category
Engineering and Technology Aerospace Engineering
Identifiers
urn:nbn:se:oru:diva-74773 (URN)
Conference
The 12th European LS-DYNA Conference 2019, 14-16 May, 2019, Koblenz, Germany
Available from: 2019-06-24 Created: 2019-06-24 Last updated: 2019-06-26Bibliographically approved
Asnafi, N. (2019). Tubular Hydroforming and Hydropiercing. In: R. Ganesh Narayanan & Jay S. Gunasekera (Ed.), Sustainable Material Forming and Joining: . Boca Raton: CRC Press
Open this publication in new window or tab >>Tubular Hydroforming and Hydropiercing
2019 (English)In: Sustainable Material Forming and Joining / [ed] R. Ganesh Narayanan & Jay S. Gunasekera, Boca Raton: CRC Press, 2019Chapter in book (Refereed)
Abstract [en]

Hydroforming of tubular components has been known by many other names such as bulge forming of tubes, hydrobulging, internal high-pressure forming, liquid forming of tubular components, etc. Different “hydroforming” methods have been reported earlier. Hydroforming or expansion in an open and in a closed tool (Dohmann and Hartl, 1996), free and die-bound hydroforming (Schäfer Hydroforming, 1996), low, high and sequenced pressure forming (Mason, 1996; VARI-FORM, 1996), and the Rolls–Royce method (Astrop, 1968) are some of the different methods tested, used, and reported so far.

Place, publisher, year, edition, pages
Boca Raton: CRC Press, 2019
National Category
Manufacturing, Surface and Joining Technology
Research subject
Mechanical Engineering
Identifiers
urn:nbn:se:oru:diva-72324 (URN)10.1201/9781315163147 (DOI)9781351670319 (ISBN)
Note

Chapter 10

Available from: 2019-02-08 Created: 2019-02-08 Last updated: 2019-02-20Bibliographically approved
Asnafi, N., Shams, T., Aspenberg, D. & Öberg, C. (2018). 3D Metal Printing from an Industrial Perspective: Product Design, Production and Business Models. In: Metal Additive Manufacturing Conference 2018 Proceedings: Industrial perspectives in Additive Technologies. Paper presented at Metal Additive Manufacturing Conference, Vienna, Austria, November 21-23, 2018 (pp. 304-313). Vienna, Austria: ASMET
Open this publication in new window or tab >>3D Metal Printing from an Industrial Perspective: Product Design, Production and Business Models
2018 (English)In: Metal Additive Manufacturing Conference 2018 Proceedings: Industrial perspectives in Additive Technologies, Vienna, Austria: ASMET , 2018, p. 304-313Conference paper, Published paper (Refereed)
Abstract [en]

This paper is focused on automotive stamping tools and dies and the impact of 3D metal printing and metals related 3D printing on design and production of such tools and dies. The purpose has been to find out the current industrial potential of 3D printing, as far lead time, costs, shapes, material usage, metal piece size, surface roughness, hardness, strength, and machinability are concerned. The business transformational impact of 3D printing is also addressed in this paper. The obtained results show that the lead time can be halved, the costs are somewhat higher, and the strength, hardness, surface roughness and machinability of the 3D printed metallic tools and dies are as good as those of the conventionally made. The maximum size of a metal piece that can be 3D printed today by Powder Bed Fusion (PBF) is in the best case 500 mm x 500 mm x 500 mm. 3D printing can also be used to make the pattern used to make the mold box in iron and steel casting. It is also possible to eliminate the casting pattern, since the mold box can be 3D printed directly. All this has started to have a large business impact and it is therefore of great significance to outline and execute an action plan almost immediately.

Place, publisher, year, edition, pages
Vienna, Austria: ASMET, 2018
Keywords
3D Printing, Additive Manufacturing, Metal, PBF, SLA, Automotive, Stamping, Tools, Dies, Design, Topology Optimization, Production, Maraging Steel, Business Transformation
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:oru:diva-70753 (URN)
Conference
Metal Additive Manufacturing Conference, Vienna, Austria, November 21-23, 2018
Funder
VINNOVA
Available from: 2018-12-16 Created: 2018-12-16 Last updated: 2018-12-20Bibliographically approved
Asnafi, N. (2018). 3D Metal Printing from an Industrial Perspective: Product Design, Production and Business Models. In: : . Paper presented at World Congress on Mechanical and Mechatronics Engineering, Dubai, UAE, April 16-17, 2018.
Open this publication in new window or tab >>3D Metal Printing from an Industrial Perspective: Product Design, Production and Business Models
2018 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

This paper summarizes the current position of 3D metal printing/additive manufacturing (henceforth called 3D metal printing) from an industrial perspective. The new possibilities to design the part differently simply because the new shape can be produced and which provides benefits with respect to improved material utilization degree, reduced weight, size etc. are addressed in this paper. Different types of generative design concepts such as form synthesis, topology optimization and lattice and surface optimization are exemplified. Low volume production by 3D metal printing is discussed. High volume production by 3D metal printing of manufacturing tools and dies is described.

Tool & die production is an important phase in the development of new components/product models. This phase determines both the lead time (Time-To-Production/-Market) and the size of the investments required to start the production. The lead time for the production of tools and dies for a new car body is currently about 12 months and needs to be reduced 40% by 2020. The lead time for injection molds for small and large series production must be reduced to 10 days and 4 weeks respectively. Lead time and cost-efficient metallic tools can be provided by 3D metal printing. This paper focuses on tools and dies for the manufacture of sheet metal & plastic components for the engineering, automotive and furniture industries. The paper includes Powder Bed Fusion (PBF). Digitalization through virtual tool & die design and optimization of the tool & die production combined with the PBF´s digital essence provides greater flexibility, better efficiency, tremendous speed, improved sustainability and increased global competitiveness.

3D metal printing is expected to result in several changes in the supplier chain and generate new business models. The present paper describes some of the changes 3D metal printing has led to and is expected to result in within the engineering and automotive industry in Europe during the coming years.

National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:oru:diva-70755 (URN)
Conference
World Congress on Mechanical and Mechatronics Engineering, Dubai, UAE, April 16-17, 2018
Note

Keynote Speech

Available from: 2018-12-16 Created: 2018-12-16 Last updated: 2018-12-20Bibliographically approved
Asnafi, N. (2018). 3D Metal Printing from an Industrial Perspective: Product Examples, Production and Business Models. In: : . Paper presented at The International Conference on Mechanical, Electric and Industrial Engineering (MEIE2018), Hangzhou, China, May 26-28, 2018.
Open this publication in new window or tab >>3D Metal Printing from an Industrial Perspective: Product Examples, Production and Business Models
2018 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

This paper summarizes the current position of 3D metal printing/additive manufacturing (henceforth called 3D metal printing) by the so-called Powder Bed Fusion (PBF) from an industrial perspective, particularly in Sweden.

The new possibilities to design the part differently simply because the new shape can be produced and which provides benefits with respect to improved material utilization degree, reduced weight, size etc. are addressed in this paper.

Tool & die production is an important phase in the development of new components/product models. This phase determines both the lead time (Time-To-Production/‐Market) and the size of the investments required to start the production. The lead time for the production of tools and dies for a new car body is currently about 12 months and needs to be reduced 40% by 2020. The lead time for injection molds for small and large series production must be reduced to 10 days and 4 weeks respectively. Lead time and cost-efficient metallic tools can be provided by 3D metal printing. This paper focuses on tools and dies for the manufacture of sheet metal & plastic components for the engineering and automotive industries.

Digitalization through virtual tool & die design and optimization of the tool & die production combined with the PBF´s digital essence provides greater flexibility, better efficiency, tremendous speed, improved sustainability and increased global competitiveness.

3D metal printing is expected to result in several changes in the supplier chain and generate new business models. The present paper describes some of the changes 3D metal printing has led to and is expected to result in within the engineering and automotive industry during the coming years.

National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:oru:diva-70754 (URN)
Conference
The International Conference on Mechanical, Electric and Industrial Engineering (MEIE2018), Hangzhou, China, May 26-28, 2018
Note

Keynote Speech

Available from: 2018-12-16 Created: 2018-12-16 Last updated: 2018-12-18Bibliographically approved
Asnafi, N. (2018). 3D Metal Printing of Production Tools & Dies. In: : . Paper presented at High Tech Steel Conference 2018, Västerås, Sweden, September 6-7, 2018.
Open this publication in new window or tab >>3D Metal Printing of Production Tools & Dies
2018 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

3D metal printing is of great interest for manufacturing of tools and dies for high volume production. It is possible to accomplish lead time reduction, tool and die weight saving, improved cycle time etc. The presentation deals primarily with Powder Bed Fusion as 3D printing method and describes 3D metal printing of tools & dies both scientifically and from an industrialization perspective. The presentation shows how far we have come in industrialization of 3D metal printing of tools & dies and what needs to be done to include 3D metal printing in the existing industrial systems and infrastructure.

National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:oru:diva-70818 (URN)
Conference
High Tech Steel Conference 2018, Västerås, Sweden, September 6-7, 2018
Funder
VINNOVA
Available from: 2018-12-19 Created: 2018-12-19 Last updated: 2018-12-20Bibliographically approved
Öberg, C., Shams, T. & Asnafi, N. (2018). Additive Manufacturing and Business Models: Current Knowledge and Missing Perspectives. Technology Innovation Management Review, 8(6), 15-33
Open this publication in new window or tab >>Additive Manufacturing and Business Models: Current Knowledge and Missing Perspectives
2018 (English)In: Technology Innovation Management Review, ISSN 1927-0321, E-ISSN 1927-0321, Vol. 8, no 6, p. 15-33Article in journal (Refereed) Published
Abstract [en]

Additive manufacturing, that is 3D printing technology, may change the way companies operate their businesses. This article adopts a business model perspective to create an understanding of what we know about these changes. It summarizes current knowledge on additive manufacturing within management and business research, and it discusses future research directions in relation to business models for additive manufacturing. Using the scientific database Web of Science, 116 journal articles were identified. The literature review reveals that most research concerns manufacturing optimization. A more holistic view of the changes that additive manufacturing may bring about for firms is needed, as is more research on changed value propositions, and customer/sales-related issues. The article contributes to previous research by systematically summarizing additive manufacturing research in the business and management literature, and by highlighting areas for further investigation related to the business models of individual firms.

Place, publisher, year, edition, pages
Carleton University Graphic Services, 2018
Keywords
3D printing, additive manufacturing, business model, literature review
National Category
Business Administration
Identifiers
urn:nbn:se:oru:diva-68151 (URN)10.22215/timreview/1162 (DOI)000437486500003 ()
Available from: 2018-07-26 Created: 2018-07-26 Last updated: 2018-07-26Bibliographically approved
Asnafi, N. (2018). Digitalization of the Swedish Industry. In: : . Paper presented at Forum für Metallurgie und Werkstofftechnik: Digitalisierung in der metallerzeugenden und -verarbeitenden Industrie, Leoben, Austria, May 17, 2018.
Open this publication in new window or tab >>Digitalization of the Swedish Industry
2018 (English)Conference paper, Oral presentation with published abstract (Refereed)
National Category
Engineering and Technology Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:oru:diva-70756 (URN)
Conference
Forum für Metallurgie und Werkstofftechnik: Digitalisierung in der metallerzeugenden und -verarbeitenden Industrie, Leoben, Austria, May 17, 2018
Note

Keynote Speech

Available from: 2018-12-16 Created: 2018-12-16 Last updated: 2018-12-19Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-8542-9006

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