浸液式往复走丝电火花线切割加工研究  

The Experimental Research on Immersion Fluid HSWEDM Process

作　　者：张伟建[1] 刘志东[1] 邱明波[1] 

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》2013年第3期50-54,共5页Electromachining & Mould

基　　金：国家自然科学基金资助项目(50975142);江苏省工业支撑计划资助项目(BE2009161)

摘　　要：通过在往复走丝电火花线切割平台上实现浸液式加工,解决了以往采用喷液冷却方式带来的电极丝上下运丝加工区域冷却不均匀、电极丝受到的阻尼作用不相同等问题。由于极间间隙工作液能得到及时补充,减少了工件加工的热变形,同时提高了加工区域电极丝的稳定性。试验证明了通过浸液式加工的工件,其加工精度、表面质量等均有改善,电极丝使用寿命获得延长,但由于工件表面与电极丝之间会通过介质产生电解漏电流,故切割效率有所降低。Through realizing immersion fluid processing technology on the HSWEDM platform, the problems that cooling of electrical discharge machining area is not uneven and damping effect on the wire electrode is not same can be solved. Owing to of the working fluid in the discharge gap supple- ment timely, is improvedthe thermal deformation of machining workpiece is reduced, and the stability of the wire electrode： Experimental results show that there has been a certain improvement on machining precision and surface quality through immersion fluid processing, the wire electrode life also get exten- sion, but due to the electrolytic leakage current between the surface of workpiece and wire electrode, the cutting efficiency is lower.

关 键 词：电火花线切割加工 喷液式 浸液式 尺寸精度 表面粗糙度 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]