一、计算公式 冲裁工序中,对于传统的整体圆形凹模的抗弯强度问题,有关文献资料指出:一般由冲模的结构设计(例如冲模的闭合高度必须处于压机最大与最小封闭高度之间等)予以了保证,可以不作强度计算;为了校核其强度,也推荐了一些计算公式,经验数据和确定事项。其中,整体圆形凹模(图1中的 First, the calculation formula blanking process, the traditional overall circular die bending strength problems, the literature said: the general design by the die structure (for example, the closing height of the die must be at the press of the maximum and minimum closed height Room, etc.) to be guaranteed, you can not make strength calculations; in order to check its strength, but also recommended some formulas, empirical data and determine the matter. Among them, the overall circular die (Figure 1