Experiment and Static Implicit Analysis of Springback in Bend Forming of a Bumper Model
2003 年 44 巻 5 号 p. 946-950
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2003 年 44 巻 5 号 p. 946-950
Experiments on bend forming of a bumper model with a 9.8-MN oil-hydraulic press and FEM analysis with the static code MARC were carried out in order to investigate springback behavior. The materials used were three types of high-strength steel sheets (HSS) of 440–780-MPa class. Experimental springback shapes were investigated using a 3-D measuring machine. The springback of a formed bumper increased with an increase in yield stress (YS) of the material, coinciding with the results of 2-D FEM simulation.
