摘要
回弹是板料冲压成形中的主要缺陷之一 ,控制回弹涉及到回弹量的准确预算。利用DANAFORM软件 ,对U形件拉深成形回弹影响因素进行了计算机仿真 ,得到了压边力、凸凹模间隙、摩擦系数、材料特性等参数对回弹影响的数值结果 ,并对模拟结果进行了分析。
The springback phenomenon in sheet metal forming is a main problem affecting the accuracy of formed parts. Well-controlling of springback needs an accurate prediction of springback quantity. This paper concentrates on the studies of springback characteristics in forming a U-typed sheet metal component using DYNAFORM. Numerical simulation results of the influential factors are obtained, which include blank holder force, punch-and-die clearance, contact frictional coefficient, and material properties, and finally the effect of each of these factors on springback is comprehensively discussed.
出处
《塑性工程学报》
EI
CAS
CSCD
2004年第5期78-84,共7页
Journal of Plasticity Engineering
