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进行冷冲模设计时,必须确定凸凹模工作部分的尺寸及其公差,而凸凹模工作部分尺寸及其公差的确定,又直接影响到冲件的精度,冲模的制造成本及冲模的使用寿命等。因此,如何合理地确定凸凹模工作部分尺寸及其公差是个值得探讨的问题。根据我们在冷冲模设计实践中的体会并参考有关资料及兄弟厂的经验,下面来讨论这个问题。(为了叙述方便,下面一律将“凸凹模工作部分尺寸及其公差”简称为“凸凹模尺寸及其公差”。)
When designing the cold die, the size and tolerance of the working portion of the punch and die must be determined, while the size and tolerance of the working portion of the punch and die are determined, which also directly affects the accuracy of the punch, the manufacturing cost of the die, and the service life of the die. Therefore, it is worth discussing how to determine the size and tolerance of working part of punch and die reasonably. According to our experience in the design of cold die and refer to the relevant information and brother factory experience, the following to discuss this issue. (In order to describe the convenience, the following will be “punch and die part of the size and tolerance” referred to as “punch and die size and tolerance.”)