滤波器盖子是我厂生产55型电传机的一个零件(见图1)。过去加工这个零件是通过落料、拉伸、压形,最后在铣床上切去废边四道工序。这种加工方法工序长,效率低。特别是切边工序,在铣床上加工时既不好定位和压紧,又易损坏铣刀。就是正常铣切,铣刀的耗量也很大。而且铣切后零件的高度尺寸一致性差。现 The filter cover is a part of our factory that produces 55 type telex machine (see picture 1). The past processing of this part is by blanking, stretching, pressing, and finally cut in the milling machine waste four processes. This processing method long process, low efficiency. In particular, trimming process, the milling machine is not well positioned and compact, but also easy to damage the cutter. Is normal milling, milling cutter consumption is also great. And after milling the height of the parts of the poor consistency. Now