Through the technological analysis of the trimming of the CA488 engine oil disc, the structure of the trimming die with a vertical boss component was determined. The inserting pattern for the punch and the matrix was introduced.

• 通过对CA488发动机机油盘切边工艺性分析 ,确定了该带立式凸台零件的切边模具结构 ,并对凸、凹模镶拼方案进行了介绍