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七十年代初我国独创的高速走丝数控线切割问世之后,由于线切割加工工艺不断完善,加工精度不断提高,加工范围不断扩大,它已成为冲模和一些复杂零件加工的极为有效的工艺方法。随着四化建设的发展,线切割机床在我国的应用已相当普及,数量上已占世界首位。线切割工艺目前大多还限于平面内各种类型的加工。虽说现在已有切割斜度的机床(国内最大3°左右),也只能解决冲切模的退料问题。对于端面型面,尤其是高精度的端面型
Since the advent of our original high-speed wire-cutting CNC wire cutting in the early 1970s, it has become an extremely effective process for the processing of dies and some complicated parts due to the continuous improvement of the wire cutting process, the continuous improvement of the machining accuracy and the continuous increase of the machining range. With the development of the four modernizations, the application of wire-cutting machine tools in our country has become quite popular and the number has occupied the first place in the world. At present, most of the wire cutting technology is still limited to various types of processing in the plane. Although there is now a cutting slope of the machine (the largest 3 ° or so), can only solve the blanking die off the problem. For the face profile, especially the high-precision face profile