为了提高线切割加工精度,降低表面粗糙度,提高模具的使用寿命,慢走丝线切割机普遍采用多次切割技术,国内也有些快走丝采用多次切割技术。多次切割凸模时,必须保留一段材料作为支撑,暂不切断,将加工程序分为主程序和切断程序两部分,主程序进行多次切割完毕后,而保留的支撑部分加工一般有两种方法:一种,在进行切断程序加工之 In order to improve the accuracy of wire cutting, reduce surface roughness and improve the service life of the die, wire cutting machine generally adopts multiple cutting technology, some domestic fast wire using multiple cutting technology. Multiple cutting punch, you must retain a section of material as a support, temporarily cut off, the processing program is divided into the main program and cut the program in two parts, the main program after cutting several times, while retaining the support part of the general processing of two Method: one, during the cutting process