一、问题的引出近年来国内外的电火花线切割加工工艺及其机床都得到迅速发展。但就目前国内广泛采用的我国独创的高速走丝线切割加工方法与国外全面使用的低速走丝线切割加工方法相比,我们虽有生产率较高、能切割较大厚度工件等优点,但在加工精度及表面光洁度等方面,却落后于国外。由于工件是由作高速轴向运动(V=10m/s)的电极丝通过放电而切割出来的, First, the problem leads to In recent years at home and abroad WEDM and its machine tools have been rapid development. However, at present, the widely used method of our country’s original high-speed wire-cutting process is compared with the low-speed wire-cutting method of low speed that is widely used in foreign countries. Although we have the advantages of high productivity and capable of cutting larger thickness workpieces, And surface finish, etc., but lag behind in foreign countries. As the workpiece is made by the high-speed axial movement (V = 10m / s) electrode wire through the discharge and cut out,