随着近代科学技术的飞速发展,为了满足高性能产品的要求,出现了一些具有高强度、耐高温、耐腐蚀等优良性能的新材料。这些材料又硬又韧,用一般切削方法加工非常困难。为了解决这个问题,近三十年来,发展了一些特种加工方法,如电火花加工,电解加工等。这些方法虽能有效地进行加工,但应用范围有限。 With the rapid development of modern science and technology, in order to meet the requirements of high performance products, there have been some new materials with excellent properties of high strength, high temperature resistance and corrosion resistance. These materials are tough and tough and are extremely difficult to machine with normal cutting methods. In order to solve this problem, in the recent three decades, some special processing methods have been developed, such as EDM and electrolytic machining. Although these methods can effectively process, but the application is limited.