一、前言模具是机械制造中很重要的装备,是促进冲压、塑压、压铸、模锻等无切削与少切削加工工艺迅速发展的关键。生产上应用最多的是冷冲压模,由于采取了电火花加工工艺,制造问题已基本获得解决。然而,塑压模、压铸模、锻模等型腔模占模具总数的比例虽是少数,但其工作量所占比例却很大,制造周期很长,工人的劳动强度也很大。以目前电器、仪表行业的塑压 First, the foreword Mold is a very important equipment in machinery manufacturing, is to promote stamping, plastic pressure, die-casting, forging and other non-cutting and cutting the key to the rapid development of the process. Production is the most widely used cold stamping die, due to take the EDM process, manufacturing problems have been basically resolved. However, the proportion of molds, die-casting molds and forging molds, which occupy the total number of molds, is a minority, but the proportion of its workload is quite large. The manufacturing cycle is very long and the labor intensity of the workers is also large. To the current electrical appliances, instrument industry plastic pressure