A short lead time methodology for design, compensation and manufacturing ofdeep drawing tools for Inconel 718
2008 (English)In: Conference Best in Class Stamping, June 16 - 18, 2008, Olofström, Sweden: [proceedings] / IDDRG, International Deep Drawing Research Group / [ed] Nader Asnafi, Olofström: Industriellt utvecklingscentrum i Olofström AB , 2008Conference paper (Refereed)
This paper presents a systematic methodology for the design and manufacturing of deep drawing tools generating high quality components at an extremely short lead time. Prototype tools for five different super alloy Inconel 718 sheet metal components were designed, manufactured and tested in 15 weeks. Two of these prototype tools (A, B) are the topics of this paper. The methodology is based on virtual tool design in which the tool concepts are secured and optimized with respect to sheet metal formability and shape deviation using FE-analyses. Tool surfaces are compensated for springback, if necessary, using the *INTERFACE_COMPENSATED_NEW capability in LS-DYNA v971 (B).The compensated FE tool surfaces are used as reference to generate high quality surfaces suitable for the milling process. Laser scanning was used to determine shape deviation. The CAD-evaluation revealed a minor shape deviation within tolerance of component (A) and a small over-compensation of the final geometry of component (B). The maximum shape deviation was however in the order of the sheet thickness. The work presented in this paper substantiate the idea that it is possible to realize development projects for new applications in Inconel 718 accurately, which is of outmost importance when developing tools at a short lead time. The key is consistent studies according to the systematic methodology in which FEanalyses were used for the virtual tool design and compensation.
Place, publisher, year, edition, pages
Olofström: Industriellt utvecklingscentrum i Olofström AB , 2008.
Research subject Solid Mechanics
IdentifiersURN: urn:nbn:se:ltu:diva-38644Local ID: d1715d20-fb95-11de-bae5-000ea68e967bISBN: 978-91-633-2948-7 (PDF)OAI: oai:DiVA.org:ltu-38644DiVA: diva2:1012145
International Deep Drawing Research Group Conference : Best in Class Stamping 16/06/2008 - 18/06/2008
Godkänd; 2008; 20100107 (ysko)2016-10-032016-10-03Bibliographically approved