基于复合工作液的电火花线切割加工技术研究  

Technology Research of WEDM Using Composite Cooling Liquid

作　　者：刘志东[1] 

机构地区：[1]南京航空航天大学,南京210016

出　　处：《电加工与模具》2008年第B04期24-30,共7页Electromachining & Mould

摘　　要：从极间放电机理的角度分析了阻碍高速走丝电火花线切割加工(HSWEDM)工艺指标提高以及产生表面黑白交叉条纹的根本原因是工作介质的洗涤性问题,试验证明HSWEDM在使用洗涤性良好的复合工作液后,由于极间冷却状态的改善而使切割工艺指标大幅度提高,切割速度已超过200mm2/min。并从放电间隙、电极丝的放电能量承受能力及运丝速度等方面进行了HSWEDM更高效率切割的可行性研究,分析了基于复合工作液的电火花线切割加工技术的发展方式。Analysis of the basic reason of embarrassing the machining indexes of high speed electrical-discharge machining（HSWEDM） and generating black and white crowing stripe on surface at present is washing ability of cooling liquid from the view of discharge mechanism. The experiment shows that the machining indexes of HSWEDM improve remarkably after using the composite cooling liquid with better washing ability to improve cooling situation at gap. At present, the cutting speed has been over 200 mm^2/min. Do some feasibility research of higher efficient cutting in HSWEDM from the as- pects of the discharge gap, the bearing ability to discharge energy of wire electrode and the wire traveling speed and so on. Four development trends of WEDM using composite cooling liquid were given.

关 键 词：高速走丝电火花线切割加工 放电机理 复合工作液 高效切割 发展方向 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]