弹涨系数是在一定的条件下,根据冲裁间隙、模具结构、材料的机械性能,厚度等因素所决定的。这方面的研究资料,大部分都已分别发表在《模具通讯》77年、78年第三期,80年增刊上,本文仅对K、B值的推导作简要的补充说明。 在一定的条件下,剪切后的金属材料产生的变形量,笔者曾总结了如下经验计算公式: Spring-up coefficient is under certain conditions, according to blanking gap, mold structure, mechanical properties of materials, thickness and other factors determined. Most of the research data in this field have been published in the 77th, 78th, and 80th Supplements of Die & Mold Communication respectively. This paper only briefly supplements K and B values. Under certain conditions, the deformation of the cut metal material, the author has summed up the following empirical formula: