基于空载率检测的聚晶金刚石复合片电火花线切割加工研究  

Research on Wire-cut Electrical Discharge Machining of Polycrystalline Diamond Composite Based on No-load Ratio Detection

作　　者：严东剑 刘志东[1] 潘红伟[1] 潘浩 张明[1] YAN Dongjian;LIU Zhidong;PAN Hongwei;PAN Hao;ZHANG Ming(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《电加工与模具》2023年第2期23-27,共5页Electromachining & Mould

基　　金：国家自然科学基金项目(51975290)。

摘　　要：针对通过传统峰值电压检测伺服跟踪方法进行电火花线切割聚晶金刚石复合片时出现的切割速度低、切割不稳定、表面质量差且易断丝的现象,提出了一种空载率检测系统控制方法。经试验得知,当空载率为10%时,该方法可得到更好的表面质量和加工稳定性,同时获得较高的切割速度,在相同脉冲宽度下切割聚晶金刚石复合片较传统峰值电压检测伺服跟踪方法的速度提升了20%。Aiming at the problems of low cutting speed,unstable cutting,poor surface quality and easy wire breakage when wire-cutting electrical discharge machining(WEDM)polycrystalline diamond composite(PDC)with traditional peak voltage detection servo tracking method,a control method of no-load ratio detection system was proposed.The experiment showed that when the no-load rate is 10%,the method can obtain higher machining surface quality and stability,as well as higher cutting speed.The cutting speed of polycrystalline diamond composite under the same pulse width is 20%higher than the traditional peak voltage detection servo tracking method.

关 键 词：电火花线切割加工 聚晶金刚石复合片 伺服跟踪 空载率 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]