Based on the elastic-plastic FEA theory of three-dimension large distortion,this paper simulates the process of the cold drawing rifled tubes by MSC.

• 本文基于三维弹塑性大变形有限元分析理论,通过对内螺旋凸筋管冷拔成形过程进行有限元仿真,建立增量步与拉拔力的关系,提出了拉拔力的计算方法。