目前,各企业的模具设计人员十分短缺,特别是集体和个体等小型企业更为突出,有的仅靠模仿方式制造模具,使模具寿命严重不足,制件质量低劣,从而影响了产品更新换代的进程,其主要原因,除模具结构不合理而外,多数是不能合理地确定凸、凹模的关键尺寸一成形尺寸。如果能找到一个便于记忆的基本计算公式,用普通技术工人都能简便地计算比较合理的冲裁、弯曲、引 At present, the mold design staff in all enterprises are in short supply, especially small enterprises such as collectives and individuals are more prominent. Some molds are manufactured only by imitation, which results in a serious shortage of mold life and inferior quality of parts, thus affecting the product replacement Process, the main reason, in addition to mold structure is unreasonable, the majority can not be reasonably determine the convex and concave die a key dimension of a forming size. If you can find a basic formula for easy memory, with ordinary skilled workers can easily calculate the more reasonable blanking, bending,