提出了超声振动-气体介质电火花复合加工技术,在简述其加工原理的基础上分析了超声振动在改善气体介质电火花加工中的作用,以及相关的理论机理。实验结果表明,附加超声振动能改善放电间隙状态,减少短路、拉弧现象,提高了材料的去除率。进行了超声振动-气体介质电火花加工单脉冲实验设计。
A new combined machining technology called ultrasonic vibration assisted electrical discharge machining in gas medium was proposed and the principle of which was introduced. The effective mechanism of ultrasonic vibration in improving machining effect of EDM in gas medium was analyzed. Experimental results show that the discharging gap is improved and the frequency of short circuit is reduced when ultrasonic vibration is added. Moreover, the MRR (material removal rate) is enhanced and the frequency of arc discharge is reduced. A single pulse experiment was designed in gas medium and ultrasonic vibration environment.