Details
| Original language | English |
|---|---|
| Pages (from-to) | 241-252 |
| Number of pages | 12 |
| Journal | Production Engineering |
| Volume | 10 |
| Issue number | 3 |
| Early online date | 5 May 2016 |
| Publication status | Published - Jun 2016 |
Abstract
It is common to use a forming limit curve (FLC) for a feasibility study of a deep-drawn steel part based on a finite element analysis (FEA). However, in such an approach a neglected fact is that a blank edge in industrial production is often produced by shear cutting. Especially, for many high strength steel grades, this cutting process notably reduces edge formability. An overestimation of formability of the blank edge, with an FLC, is the consequence that may lead to cracks at the sheared edge of a part. The following paper describes a new approach to determine formability of a sheet-steel sheared edge by hole expansion test that uses an FLC tool set. This approach delivers a hole expansion ratio with considerably lower scattering compared to the hole expansion according to ISO 16630. Additionally, information on the planar isotropy, flow and necking behavior of the material, is supplied. Finally, a pragmatical way of transferring test results into an FEA of the forming process for a sheet blank with a sheared edge is presented.
Keywords
- Edge-crack, Formability, Hole expansion, Numerical simulation, Sheared edge, Steel
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Production Engineering, Vol. 10, No. 3, 06.2016, p. 241-252.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A new approach for user-independent determination of formability of a steel sheet sheared edge
AU - Schneider, Matthias
AU - Peshekhodov, Ilya
AU - Bouguecha, Anas
AU - Behrens, Bernd Arno
N1 - Funding Information: The research Project P 830/01/2010/S24/10170/09 "Investigation of damage and formability of the sheared edge of dual-phase steels with the help of the multiscale finite element analysis" has been carried out at the Institute of Forming Technology and Machines of the Leibniz Universit?t Hannover and the Salzgitter Mannesmann Forschung GmbH. FOSTA has accompanied the research work and has organized the project funding from the Foundation for Steel Application Research. The authors also thank B. Acun, M. Baeck and J. Parschukow for helping to build up SZMF-ARAMIS -macro and SZMF-EXCEL -macro for HET -NAK postprocessing in framework of their student thesis and H. Friebe, T. M?ller and C. Blumenthal from GOM mbH for their work on usability of GOM-ARAMIS -macro.
PY - 2016/6
Y1 - 2016/6
N2 - It is common to use a forming limit curve (FLC) for a feasibility study of a deep-drawn steel part based on a finite element analysis (FEA). However, in such an approach a neglected fact is that a blank edge in industrial production is often produced by shear cutting. Especially, for many high strength steel grades, this cutting process notably reduces edge formability. An overestimation of formability of the blank edge, with an FLC, is the consequence that may lead to cracks at the sheared edge of a part. The following paper describes a new approach to determine formability of a sheet-steel sheared edge by hole expansion test that uses an FLC tool set. This approach delivers a hole expansion ratio with considerably lower scattering compared to the hole expansion according to ISO 16630. Additionally, information on the planar isotropy, flow and necking behavior of the material, is supplied. Finally, a pragmatical way of transferring test results into an FEA of the forming process for a sheet blank with a sheared edge is presented.
AB - It is common to use a forming limit curve (FLC) for a feasibility study of a deep-drawn steel part based on a finite element analysis (FEA). However, in such an approach a neglected fact is that a blank edge in industrial production is often produced by shear cutting. Especially, for many high strength steel grades, this cutting process notably reduces edge formability. An overestimation of formability of the blank edge, with an FLC, is the consequence that may lead to cracks at the sheared edge of a part. The following paper describes a new approach to determine formability of a sheet-steel sheared edge by hole expansion test that uses an FLC tool set. This approach delivers a hole expansion ratio with considerably lower scattering compared to the hole expansion according to ISO 16630. Additionally, information on the planar isotropy, flow and necking behavior of the material, is supplied. Finally, a pragmatical way of transferring test results into an FEA of the forming process for a sheet blank with a sheared edge is presented.
KW - Edge-crack
KW - Formability
KW - Hole expansion
KW - Numerical simulation
KW - Sheared edge
KW - Steel
UR - http://www.scopus.com/inward/record.url?scp=84966354968&partnerID=8YFLogxK
U2 - 10.1007/s11740-016-0677-4
DO - 10.1007/s11740-016-0677-4
M3 - Article
AN - SCOPUS:84966354968
VL - 10
SP - 241
EP - 252
JO - Production Engineering
JF - Production Engineering
SN - 0944-6524
IS - 3
ER -