A Method of Die Surface Compensation after Spring Back Prediction in Sheet Metal Forming
Spring back in the process of sheet metal forming leads to deviations between design sizes and actual dimensions of stamping parts,to meet the precision requirements of deviations,the shape of die surface needs to be compensated in the opposite direction according to the predicted spring back by numerical simulation.In this article,the R S coordinate mapping method is used to revise coordinates of finite element nodes according to the predicted spring back,and the bi-cubic B spline surface interpolation method is applied to reconstruct die surface with CAD data format.An example shows that the algorithms are feasible and have some practical values.
spring back die surface compensation R S coordinate mapping method surface fitting numerical simulation bi-cubic B spline surface interpolation
Xiaoda Li Xianghui Zhan
Department of Mechanical and Electrical Engineering,Zhuhai College of Jilin University,Zhuhai,519041,China
国际会议
济南
英文
157-163
2012-12-29（万方平台首次上网日期，不代表论文的发表时间）