英国伯明翰市Chadwikc工程公司用电火花技术加工高精度的冲头与冲模时,采用在现有电火花机床上追加连续脉冲发生器的方法减小电极耗损,获得很好的经济效果。据称,在精加工电极上实际上未产生可测耗损。典型的冲头与冲模见照片的后部,其中A为备用冲头。照片前部中央是另一种冲头,右侧 Chadwikc Engineering, Birmingham, UK When machining high-precision punches and dies with EDM, the use of a continuous pulse generator on an existing EDM machine reduces electrode wear and leads to very good economic results. It is alleged that virtually no measurable wear on the finishing electrode. A typical punch and punch see the back of the photo, where A is the backup punch. The center of the front of the photo is another type of punch, on the right