高速钢中走丝电火花线切割加工参数试验研究  

Experimental Study on MS-WEDM Parameters of High Speed Steel

作　　者：沈钰[1] 白海清[1] 高飞 王磐[1] SHEN Yu;BAI Haiqing;GAO Fei;WANG Pan(College of Mechanical Engineering,Shaanxi University of Technology,Hanzhong 723001,China)

机构地区：[1]陕西理工大学机械工程学院

出　　处：《热加工工艺》2018年第17期68-71,75,共5页Hot Working Technology

基　　金：陕西省重点科学研究计划资助项目(15JS016);陕西理工大学研究生创新基金项目(SLGYCX1825)

摘　　要：为研究中走丝电火花线切割加工参数对高速钢切割质量的影响,采用单因素试验与正交试验相结合的设计方法,以高速钢的加工表面粗糙度为性能指标,重点研究分析了脉冲宽度、脉冲间距、功放管数和加工限速四个电参数对其性能指标的影响规律。根据极差与方差分析可知,各电参数影响表面粗糙度的主次顺序为加工限速、脉冲宽度、功放管数、脉冲间距,其中主要影响参数为加工限速。高速钢中走丝电火花线切割的最优参数组合：加工限速为40 Hz,脉冲宽度Ton为5μs,功放管数为4个,脉冲间距为9倍Ton。In order to study the influence of parameters of middle speed wire electric discharge machining（MS-WEDM）on the cutting quality of high speed steel,the design method combining single factor experiment with orthogonal experiment was used.Taking the machined surface roughness of the high speed steel as performance index,the influence of four electrical parameters of pulse width,pulse spacing,power amplifier tube number and machining speed limit on the performance index was analyzed emphatically.According to the range analysis and variance analysis,the main and secondary order of electric parameters affecting the surface roughness is machining speed limit,pulse width,power amplifier tube number,pulse spacing,and the main influence parameter is machining speed limit.The optimal MS-WEDM parameters of the high speed steel are machining speed limit of 40 Hz,pulse width Tonof 5μs,power amplifier tube number of 4,and pulse spacing of 9 times Ton.

关 键 词：电火花线切割 高速钢 电参数 表面粗糙度 

分 类 号：TG484[金属学及工艺—焊接]