目前许多高强度,高硬度的合金钢,淬火钢及其它特种钢材的出现,利用古典的机械加工方法加工,已经难以实现,其中有些可以采用贵重的合金刀具进行加工,但刀具本身也要损耗,因此耗费了过多的贵重金属属。为此必须采用与机械加工方法有着本质不同的新式加工法,这就是先进的新工艺——阳级机械加工,它是电蚀加工的一 At present, the emergence of many high-strength, high-hardness alloy steels, hardened steels and other special steels, using classical machining methods, has been difficult to achieve, and some of them can be processed with precious alloy tools, but the tools themselves have to be lost. As a result, too much precious metal is consumed. To this end, a new type of processing method, which is fundamentally different from the mechanical processing method, must be used. This is an advanced new process, namely, Yang-grade mechanical processing, which is an electro-erosion process.