Research on Material Removal Mechanism of Micro-EDM in Deionized Water

Coatings

Zhiheng Chen¹  Dongsheng Jiang²  Qingyu Liu²  Tingting Ni²  Yunzhong Wang³ 

[1] Dong Fang International Container (Qingdao) Co., Ltd., Qingdao 266500, China;Key Laboratory of Laser Green Intelligent Manufacturing Technology, Qingdao University of Technology, Qingdao 266525, China;Qingdao Haijian Energy Conservation and Environmental Protection Co., Ltd., Qingdao 266235, China;

关键词: micro-EDM;    material removal mechanism;    deionized water;    dielectric;   

DOI  :  10.3390/coatings11030322

来源: DOAJ

【 摘 要 】

As one of the most promising processing methods, the microelectrical discharge machining (micro-EDM) process is widely used in industrial production; however, the material removal mechanism of micro-EDM in deionized water has not been clarified due to scale effect. In this paper, the influence of discharge parameters on the discharge crater size was studied by means of a single-pulse discharge experiment using a resistor–capacitor circuit (RC circuit). The variation trend of the discharge crater size with open-circuit voltage and capacitance was discussed based on the experimental results. The results show that the diameter and depth of the discharge crater increases with capacitance and open-circuit voltage due to the increasing discharge duration and the energy density of the discharge plasma. The discharge energy increases with the increase of capacitance and open-circuit voltage, which causes more materials to melt and vaporize, leading to the crater volume becoming larger. This study has reference value for the further application of micro-EDM adopting deionized water as a dielectric.

【 授权许可】

Unknown