G0410403 Springback reduction in multistep V bending of SUS304

Abstract

Multistep V bending of SUS304 and SPC sheets were carried out. Effect of number of bending steps and first stroke on springback with changing holding time at bottom dead point was investigated. The effect of number of bending steps on springback in SPC sheets was small, but that in SUS304 sheets was large. The effect of number of bending steps on springback was larger than that of holding time at bottom dead point.