气中微细电火花线切割加工实验研究  

Experimental Study of Micro-wire Electrical Discharge Machining in Gas

作　　者：张開 王彪[1] 杨福合[1] 李川怀 

机构地区：[1]中北大学,太原030051

出　　处：《中国机械工程》2016年第13期1740-1742,共3页China Mechanical Engineering

摘　　要：气中微细电火花线切割加工用气体作加工介质,可加工难切削材料、复杂零件,具有低应力、无毛刺等特点。研究了气中微细电火花线切割加工中开路电压、极间电容、气压以及相对进给速度对试件切槽宽度和表面粗糙度的影响。实验结果显示:气压、相对进给速度和极间电容对切槽宽度和表面粗糙度有明显影响,开路电压的变化对加工结果产生有限影响。Micro-wire electrical discharge machining using gas as processing medium, might be used to process hard-cutting materials and complex parts, featured with low stress and no burr.The effects of slot width and roughness of specimens influenced by open circuit voltage, electrode capacitance,air pressure and relative electrode feed-rate were researched.Experimental results show that air pressure, relative electrode feed-rate and electrode capacitance have obvious effects on slot width and roughness.The change of open circuit voltage has little to do with processing results.

关 键 词：微细电火花线切割 气中 切槽宽度 表面粗糙度 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]