镍基高温合金Inconel 718的超高效电火花电弧复合加工  

Combined Machining of Inconel 718 by Super High Efficient EDM Milling and Arc Machining

作　　者：王飞[1] 刘永红[1] 申泱[1] 唐泽民[1] 王广绪 纪仁杰[1] 张彦振[1] 

机构地区：[1]中国石油大学(华东)机电工程学院,山东东营257061

出　　处：《电加工与模具》2013年第6期32-35,共4页Electromachining & Mould

基　　金：山东省"泰山学者"建设工程资助项目(TS20110823);青岛市科技发展计划资助项目(12-1-4-7-(2)-jch);中央高校基本科研业务费专项资金资助项目(11CX06065A)

摘　　要：提出了一种超高效电火花电弧复合铣削镍基高温合金Inconel 718的加工方法,构建了一种新型大功率电源,主要由高压脉冲电源和低压大功率直流电源组成。在冲液和电极旋转的作用下得到了非连续电弧,材料去除率可达13 421 mm3/min,相对电极损耗率可达1.71%。进行了复合加工和电火花加工的对比实验研究,分析了电极转速对材料去除率和相对电极损耗率的影响,并对加工表面特性进行了研究。This paper proposed a high efficient combined machining of electrical discharge machining and arc machining for machining Inconel 718. The proposed power supply comprised a pulse generator with high voltage and a DC power source with high current. Benefiting from efficient flushing and electrode rotation,the noncontinuous arc was yielded,and the maximum material removal rate （MRR） achieved 13 421 mm3/min with a relative electrode wear ratio （REWR） of 1.71%. Comparison experiments were conducted to reveal the differences between EDM and compound machining. And the effects of rotation speed on MRR and REWR were investigated. Surface integrity was also studied.

关 键 词：电火花加工 电弧加工 铣削 INCONEL 718 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]