冲压模具,不论是分离工序或成形工序的,一般都需要制造凸模和凹模。对这两类工序来说,凸模和凹模的配合精度是制模的关键,因为凸模和凹模除了本身的尺寸精度必须满足制件的准确度外,凸模和凹模之间还有配合间隙精度的要求。过去常用的钢制模具,往往由于切削加工的精度误差和随后热处理的变 Stamping die, whether separation or forming processes, generally need to create punch and die. For these two types of processes, the punch and die with the accuracy of the mold is the key, because the punch and die in addition to their dimensional accuracy must meet the accuracy of the workpiece, the punch and die between With the gap accuracy requirements. In the past commonly used steel mold, often due to the accuracy of the cutting error and subsequent heat treatment of the variable