锻压技术

汽车背门口左右角板的冲压成形分析

英文标题：Analysis on the forming for back door angle plate of car

作者：郭晶赵广东

单位：本钢产品研究院

分类号：

出版年,卷(期):页码：2016,41(7):23-26

摘要：

结合BUP板料成形试验机和ARAMIS三维光学材料应变测量系统，测量DC53D的成形极限曲线，通过试验得出DC53D成形极限最低点应变值为36.4%。利用网格应变分析技术对汽车部件背门口左右角板进行冲压成形分析，得到冲压件的主应变最大值31.2%，最大厚度减薄25%，以及特征截面线上的主应变变化曲线。同时将冲压件的主应变与DC53D的成形极限曲线对比分析发现：汽车部件背门口左右角板的大部分变形为拉延变形；冲压板料DC53D具有良好的冲压成形性能；冲压件对应成形极限曲线最低点的主应变为24.3%，网格应变分析结果可以作为成形件失效分析和模具调试与修整的依据。

Combined with BUP sheet metal forming machine and ARAMIS 3D optical material strain measurement system, the DC53D forming limit curve was measured, and the lowest strain of DC53D forming limit is 36.4% by experiment. Then, the stamping of back door angle plate was analyzed by the grid strain analysis technique with the maximum major strain 31.2% and the maximum thickness thinning 25%, and major strain variation curve on the section line was obtained as well. Contrasting the major strain of the stamping part with the forming limit curve of DC53D, it is found that the most serious deformation of automobile parts is drawing deformation in the back angle plate around the door. Therefore, stamping sheet DC53D is of good forming performance. The stamping part major strain at the lowest point of the forming limit curve is 24.3%. Furthermore, the analysis results of grid strain provide the basis for the failure analysis of the forming part, and the adjustment and modification of the die.

基金项目：

郭晶（1986-），女，硕士，工程师

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