要获得高质量的冲裁工件,保证冲模有足够的寿命,必须正确计算冲裁模具刃口尺寸和合理选用冲裁间隙。当前冲裁模刃口尺寸计算方法,容易出现冲模使用寿命达不到设计要求,工件尺寸超差或一套冲模冲下的一批工件尺寸分布不够合理等现象。通常对冲裁模具刃口尺寸计算,既要保证工件精度,又要最大限度提高模具的使用寿命;同时,还要考虑模具加工的经济性。 To obtain high-quality blanking parts, to ensure adequate die life, blanking die edge size must be properly calculated and the choice of blanking clearance. The current die cutting edge size calculation method, prone to die life of less than the design requirements, the workpiece size tolerance or a set of Chong Chong Chong under a number of workpiece size distribution is not reasonable and so on. Usually blanking die edge size calculation, it is necessary to ensure the accuracy of the workpiece, but also to maximize the life of the mold; the same time, we must also consider the economy of mold processing.