CAJ | 학술논문

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13421 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。
제출료일충초고효전화화전호복합선삭얼기고온합금Inconel 718적가공방법，구건료일충신형대공솔전원，주요유고압맥충전원화저압대공솔직류전원조성。재충액화전겁선전적작용하득도료비련속전호，재료거제솔가체13421 mm3/min，상대전겁손모솔가체1.71%。진행료복합가공화전화화가공적대비실험연구，분석료전겁전속대재료거제솔화상대전겁손모솔적영향，병대가공표면특성진행료연구。
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.