The application of a newly modified numerical global springback compensation method

Abstract

Abstract A newly modified numerical global springback compensation methodwas used to simulate the die process in this paper. The numerical approach is given to evaluate the compensation matrix, and the matrix changes according to forming deviations. And GCremedies quasi Newton (QN) method’s sensitivity to initial die contour. To verify its effectiveness, GC, DA and QN have been used to design dies for a series sheet metal parts with cylinder, sphere and saddle shapes. Summarizing simulation and experiment results, the method in general converges faster and more stable.