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通过对板料拉弯应力状态的分析 ,根据回弹理论 ,推导了摩擦系数与回弹角之间的近似计算关系式 ,并讨论了摩擦对回弹的影响
Based on the analysis of tension state of sheet metal bending, the approximate calculation relation between friction coefficient and bounceback angle is deduced according to the theory of springback, and the effect of friction on springback is discussed