在综合国内电加工界对高速走丝电火花线切割机多次切割技术研究的基础上 ,分析和研究了此技术的几项关键因素 ,并进行了必要的理论探讨和实验研究。 On the basis of comprehensive researches on the multi-cutting technology of high-speed wire-cut WEDM in domestic electrical processing sector, several key factors of this technology are analyzed and studied. The necessary theoretical discussions and experimental studies are carried out.