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本文通过理论分析,导出了极限翻边系数K_(min)的计算式:K_(min)=e~(-(1+R)n)。该式综合反映了金属板料两个基本的成形参数n 值和R 值对K_(min)的影响。经实验验证,理论计算值与实验结果基本相符。
In this paper, the calculation formula of ultimate flange coefficient K_ (min) is derived through theoretical analysis: K_ (min) = e ~ (- (1 + R) n). The formula reflects the two basic sheet metal forming parameters n and R value of K_ (min). The experimental results show that the calculated values are in good agreement with the experimental results.