Three Industrial Cases of Sheet Metal Forming Simulations with Elastic Dies

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Pilthammar, JohanBlekinge Tekniska Högskola,Institutionen för maskinteknik (author)

Three Industrial Cases of Sheet Metal Forming Simulations with Elastic Dies

Article/chapterEnglish2023

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IOP PUBLISHING LTD,2023
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LIBRIS-ID:oai:DiVA.org:bth-25248
https://urn.kb.se/resolve?urn=urn:nbn:se:bth-25248URI
https://doi.org/10.1088/1757-899X/1284/1/012055DOI

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Language:English
Summary in:English

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Subject category:kon swepub-publicationtype

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Previous research and experience points to many advantages if sheet metal forming is simulated with elastic dies. Some areas that are enabled by simulations with elastic dies are virtual spotting, improved digital twins, and improved production support. A promising method was selected from the literature, and after important modifications it is deemed to be fast and robust for simulating industrial sized dies. The method consists of meshing die solids with a coarse mesh to represent the structural behaviour of the die. The forming surfaces are then represented by a fine shell mesh connected to the solid mesh by tied contacts with an offset. With additional modifications to reduce solver time this yields a robust and flexible way of modelling sheet metal forming with elastic dies. There is an increase in preprocessing and simulation time compared to using rigid tools, but industrial dies can now be modeled within an hour and solved within a working day. It is also easy to update the model by replacing separate parts such as die solids or forming surfaces. One of the main criteria in favor of the selected approach is the realistic modeling of blankholder and cushion systems. In this paper simulations of three industrial cases are demonstrated: one case of virtual die spotting and two cases of production support. The three cases demonstrate the importance and potential of using elastic dies during virtual die tryout, production support, and for cases like digital twins and production control.

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Sigvant, MatsBlekinge Tekniska Högskola,Institutionen för maskinteknik(Swepub:bth)MXS (author)
Islam, Md. Shafiqul,1984-Blekinge Tekniska Högskola,Institutionen för maskinteknik(Swepub:bth)MDM (author)
Schill, M.Dynamore Nord, Sweden. (author)
Sjoblom, S.Blekinge Tekniska Högskola,student (author)
Sjoblom, V.Blekinge Tekniska Högskola,student (author)
Lind, M.Blekinge Tekniska Högskola,student (author)
Blekinge Tekniska HögskolaInstitutionen för maskinteknik (creator_code:org_t)

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In:42ND CONFERENCE OF THE INTERNATIONAL DEEP DRAWING RESEARCH GROUP: IOP PUBLISHING LTD

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Applied Mechanic ...

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By the university: Blekinge Institute of Technology

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