基于AutoForm的超深冲汽车电池盒成形工艺设计与仿真

Stamping Process Design and Simulation of Extra-deep-drawing Auto Battery Box by Auto Form Based Software

以拉延深度高达238 mm的新能源汽车电池盒上板为研究对象,通过分析零件图的结构形状特征,利用Auto Form有限元分析软件建模及数值模拟方法对板料的冲压成形过程进行了多种拉延方案的工艺模拟分析,依据有限元软件的成形仿真结果预测板料在拉延过程中出现的开裂、起皱等成形缺陷,研究分析了缺陷产生的原因,确定了零件的最佳成形方案,并优化了成形工艺参数。

By taking the upper coverplate of the auto battery box whose drawing depth was as deep as 238 millimeters as the object of study and analyzing the characteristics of the auto detail drawing, the analytical modeling was established by the Auto Form finite element analysis software and the technological simulation analysis over several drawing schemes of the sheet metal stamping process was carried out by the numerical simulation method. Then based on the stamping simulation results achieved by the finite element software, these forming defects such as cracking and corrugations could be calculated. So the causes leading to the defects were discussed and analyzed and thus the optimal scheme for parts stamping was determined, meanwhile the technological parameters were optimized.