板料轴对称成形的全过程分析

利用塑性平面应力问题的准确求解方法，对板料拉延时的弹塑性和完全塑性变形阶段凸缘变形区的应力和变形情况进行了全过程分析，提出了不同变形阶段的成形条件．

薄板拉深成形有限元模拟中的关键技术及应用研究

阐述了薄板拉深成形有限元模拟的基本思路,对薄板拉深成形有限元模拟中的关键技术进行了分析,并应用有限元模拟的方法对非轴对称拉深成形的典型零件——矩形盒的成形过程进行了有限元模拟研究。

Plastic forming behavior of axisymmetric bimetal products with rotary swaging

In this paper,an elasto-viscoplastic three-dimension(3D) finite element model is developed to simulate the processing of bimetal tube with rotary swaging. Through simulation,the effects of high-frequency pulse stroking on the distribution and histories of stress,stain and loading are clarified. The stress in inner tube is compressive and higher than the minimum bonding force. Meanwhile,the stiffness of inner tube impacts outer tube extension in length.