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本文利用刚塑性有限元法模拟了椭圆形筒拉深成形的全过程，研究了椭圆形筒的变形特点，并给出了一次拉深时的成形极限。
In this paper, the rigid plastic finite element method was used to simulate the whole process of the oval tube deep drawing. The deformation characteristics of the oval tube were studied. The forming limit of the oval tube was given.