The Springback Predication for a Pillar Reinforcement Plate with Drawing Surface Optimization

Abstract

More and more high strength steel panels are used in the Auto assembly for the reason of reducing pollution emissions and fuel consumption. The springback predication with different drawing styles for A pillar reinforcement plate is studied in this paper. The drawing process is optimized with different height drawbead for getting a reasonable forming result without obvious crack areas. An open drawing is used to study the possibility of reducing the blank size, but the measuring results show that the springback value predicted with close ends drawing is very close to the real tryout results and more lower than open ends drawing. So the open end drawing method can not be used in the tryout from the perspective of reducing the springback value.