基于正交试验法的往复走丝线切割多次切割工艺的研究  

Research on Multi-cutting Processing of HS-WEDM based on Orthogonal Experiment

作　　者：李朝将[1] 郭永丰[1] 白基成[1] 杨三强[1] 朱国征[1] 卢泽生[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,黑龙江哈尔滨150001

出　　处：《电加工与模具》2010年第1期4-8,共5页Electromachining & Mould

基　　金：国家863高技术研究发展计划资助项目(2007AA04Z345)

摘　　要：针对影响往复走丝电火花线切割多次切割的因素较多,采用正交试验的方法,进行放电脉宽、脉间、峰值电流、运丝速度、工作液及每次切割的偏移量对往复走丝电火花线切割3次切割的影响试验,确定影响加工效率和加工表面粗糙度的显著影响因素水平,优化加工参数,进行5次切割试验验证,获得工件加工表面粗糙度Ra0.69μm,加工的重复性较好。Based on a number of factors influencing on the multi-cutting of HS-WEDM, an orthogonal experiment was performed to study the influence of pulse width , pulse interval, current peak, wire speed, the working fluid and the offset of the electrode wire on the processing efficiency and surface roughness for three-time cutting of HS-WEDM. This method can not only confirm the level of remarkable effecting factors of the processing efficiency and the surface roughness, but also optimize the parameters. Furthermore, combining with practical situation, the surface roughness Ra can reach to 0.69 μm after five-time HS-WEDM experiment. Thus, those reproducible parameters during the process will be better.

关 键 词：往复走丝线切割加工 多次切割 正交试验 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]