本文在分析拉伸类冲压工艺应力状态的基础上,设计了三种模拟试片,并对七种常用材料进行了拉伸试验和胀形、扩孔、翻边等成形工艺试骏,获得了板材拉伸试验在断裂时的长度真实应变L与拉伸类冲压成形性能试验时的胀形深度h,扩孔率λ和翻边系数K之间的相关性,从而为采用板村拉伸试验来代替冲压成形工艺性能试验提供了实验基础。 Based on the analysis of the stress state of the drawing process, three kinds of simulated test strips were designed and the tensile tests and the forming processes such as bulging, reaming and burring of seven commonly used materials were carried out. The relationship between the true strain L at the time of rupture and the bulging depth h, the hole expanding ratio λ and the burring coefficient K in the tensile stamping formability test of the sheet tensile test is the correlation between the tensile strain To replace the stamping process performance test provides the experimental basis.