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Abstract：
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In the forming process of drawing, friction condition is one of the important factors for the forming result, while flange is the main zone of forming.As for these causes, firstly, this paper does some theory analysis by producing a mathematics model. Secondly, It gets friction coefficient in variety places and conditions by testing, does further research on forming features of square deep drawing work piece, furthermore, for controlling friction condition in practice, this paper is focused on analyzing the influence law by changing the technological conditions and the material parameter.
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