环形丝单向运丝电解线切割加工技术试验研究  

Experimental Research on Ring Wire WECM with Wire Travelling in One Direction

作　　者：张海[1] 曾永彬[1] 于洽[1] 朱荻[1] 

机构地区：[1]南京航空航天大学,南京210016

出　　处：《中国机械工程》2014年第2期223-225,共3页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(51005120);江苏省自然科学基金资助项目(BK2010508)

摘　　要：为了解决加工间隙内电解加工产物的排除问题,在分析电解线切割加工特点的基础上,采用环形镀锌黄铜丝作为阴极,在电机的驱动下,使环形丝的运动方向与重力方向保持一致,从而便于带出加工区的电解产物;在搭建的加工系统上进行了正交试验,研究加工电压、进给速度、电解液浓度及环形丝单向运丝速度对加工间隙的影响。最后采用优化的加工参数加工出缝宽为250μm、深宽比达20的五角星结构。The electrolysis products in the gap always affected the WECM precision, a ring wire travelling in one direction during the process was proposed to enhance the efficiency of removing prod- ucts,and the wire tension was controlled in constant to ensure the stability of wire travelling. The in- fluence of several processing factors, such as wire travel speed, feed speed, concentration of electrolyte and voltage, on the machining process was investigated. Structures with high--aspect--ratio were fab- ricated,the width of the slits was 250μm and the aspect ratio of the slits was nearly 20.

关 键 词：电解线切割 环形丝 单向运丝 正交试验 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]