| 1. |
- Öberg, Christina, 1970-, et al.
(författare)
-
Additive Manufacturing and Business Models : Current Knowledge and Missing Perspectives
- 2018
-
Ingår i: Technology Innovation Management Review. - Ottawa, ON, Canada : Carleton University Graphic Services. - 1927-0321. ; 8:6, s. 15-33
-
Tidskriftsartikel (refereegranskat)abstract
- 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.
|
|
| 2. |
- Asnafi, Nader, 1960-, et al.
(författare)
-
3D Metal Printing from an Industrial Perspective : Product Design, Production and Business Models
- 2018
-
Ingår i: Metal Additive Manufacturing Conference 2018 Proceedings. - Vienna, Austria : ASMET. ; , s. 304-313, s. 304-313
-
Konferensbidrag (refereegranskat)abstract
- 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.
|
|
| 3. |
- Asnafi, Nader, 1960-, et al.
(författare)
-
3D Metal Printing from an Industrial Perspective : Product Design, Production, and Business Models
- 2019
-
Ingår i: Berg- und Huttenmännische Monatshefte (BHM). - Vienna : Springer. - 0005-8912 .- 1613-7531. ; 164:3, s. 91-100
-
Tidskriftsartikel (refereegranskat)abstract
- 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.
|
|
| 4. |
- Öberg, Christina, 1970-, et al.
(författare)
-
Additive manufacturing : Current knowledge and missing perspectives
- 2017
-
Ingår i: 18th International CINet Conference, "Digitalization and innovation: designing the organization of the future", 10-12 September 2017, Potsdam, Germany. - Potsdam : Continous Innovation Network (CIBet).
-
Konferensbidrag (refereegranskat)
|
|
| 5. |
- Asnafi, Nader, 1960-, et al.
(författare)
-
Design and Validation of 3D-Printed Tools for Stamping of DP600
- 2019
-
Ingår i: 38th International Deep Drawing Research Group Annual Conference, IDDRG 2019. - : Institute of Physics Publishing (IOPP).
-
Konferensbidrag (refereegranskat)abstract
- This paper is focused on automotive stamping tools & dies and the impact of 3D metal printing on design and production of such tools & dies. Forming (U-bend) and trimming/cutting/blanking tools & dies designed both conventionally and by topology optimization were 3D-printed, using Laser-based Powder Bed Fusion (LPBF), in the maraging steel DIN 1.2709. These 3D-printed tools were then used to form (U-bend) and trim/cut/blank 2-mm thick hot-dip galvanized DP600. An approval of the forming tool required that 50,000 U-bends were formed in 2-mm thick DP600 without any surface scratches on the sheet metal part. An approval of the trimming/cutting/blanking tool required 100,000 trimming strokes with this tool, where the maximum (sheet metal) burr height was lower than 0.2 mm (lower than 10% of the sheet thickness (2 mm in this study)). The 3D-printed forming and trimming/cutting/blanking tools & dies - both the conventionally designed and the topology optimized versions – managed the criteria mentioned above and were therefore approved. The approval means that these concepts can now be used to make production stamping tools and dies. This paper describes the topology optimization, the forming & trimming/cutting/blanking testing, the results yielding an approval of the 3D-printed tool concepts, and the 3D-printed production tools for stamping of DP600.
|
|
| 6. |
|
|
| 7. |
|
|
| 8. |
|
|
| 9. |
|
|
| 10. |
- Skåre, Thomas, et al.
(författare)
-
Forming and trimming of 2-mm thick DP600 sheet steel in tools and dies 3D-printed in maraging steel by laser-based powder bed fusion
- 2020
-
Ingår i: IOP Conference Series: Materials Science and Engineering. - : IOP Publishing.
-
Konferensbidrag (refereegranskat)abstract
- In a previous investigation, 3D-printed solid and topology optimized semi-industrial tools for forming and trimming of 2-mm thick hot-dip galvanized DP600 were certified. This certification required 50,000 strokes in U-bend forming and 100,000 strokes in trimming/cutting/blanking. The present paper focuses on the tool wear, the U-bend sheet surfaces, the shear and fracture zone lengths in trimming, and the punch forces in this certification. The 3D-printed tools behave as conventional tools do. Although small, there seems to be a difference in wear at the profile radius between the solid and topology optimized Ubending tool halves 3D-printed in maraging steel DIN1.2709.
|
|
