The current work is carried out to assist the ULSAB project to investigate the manufacturing feasibility of key Body-in-White components. FEM analysis of the stamping processes is used to identify and help solve potential manufacturing problems. Two High Strength Steel tailor welded blank components, a Panel Rocker Inner and a Rail Rear Inner are selected for the project. Soft die tryout and FEM analyses based on LS-Dyna are carried out simultaneously. Effects of drawbeads and die geometries on wrinkling and splitting behaviors are examined in detail by simulation. Suggestions based on the analysis are adopted and verified in the tooling tryout processes. The causes of discrepancies between the predicted and the actual are identified. The predicted results are in a good agreement with the ones from the formed panel. The results of the work demonstrate that FEM simulation is a suitable and efficient tool for manufacturing feasibility study.
FEA assisted body-in-white manufacturing feasibility study
1998
12 Seiten, 13 Bilder, 2 Tabellen, 3 Quellen
Conference paper
English
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