基于PAM-STAMP2G的钛合金钣金零件橡皮囊成形有限元模拟

摘要

以典型钛合金钣金零件角压条为研究对象，利用PAM-STAMP 2G有限元软件对角压条的橡皮囊成形过程进行模拟，通过对角压条橡皮囊成形过程中成形件的应力、回弹及厚度分布等的分析，预测了钣金件成形过程中减薄、拉裂、回弹等缺陷，分析了缺陷产生的原因，供钣金件橡皮囊成形工艺参数的优化和模具结构的改进参考。%The rubber bladder forming process of the angle layer for the typical titanium al oy sheet metal part is simulated by the PAM-STAMP 2G finite element software. The conditions of its thinning, cracking and springback are predicted by analyzing the form-ing stress in its process. And then, the reference is provided for the parameters optimization of the sheet metal hydraulic stretch forming process and the die structure improvement.