A study to explore the properties of electrochemical discharge effect based on pulse power supply

作者:Zhang, Zhaoyang; Huang, Lei*; Jiang, Yujia; Liu, Gao; Nie, Xin; Lu, Haiqiang; Zhuang, Hongwu
来源:International Journal of Advanced Manufacturing Technology, 2016, 85(9-12): 2107-2114.
DOI:10.1007/s00170-015-8302-9

摘要

Spark assisted chemical engraving (SACE) is an effective non-traditional processing technique that can be used to process non-conductive and hard brittle materials, like glass and engineering ceramics. In this study, the properties of electrochemical discharge effect based on pulse voltage were explored. To research the critical voltage of the electrochemical discharge, the effect of the electrolyte and its concentration, the diameter and the rotational speed of the tool electrode, the pulse frequency, and the duty cycle of the pulse voltage were discussed. The results indicate that changes of the parameters, except changing the rotational speed, have great influence on the critical voltage. The film formation time and the mean electric current were also discussed in this study by measuring electric current signal. In addition, the micro-hole drilling was carried out. The results show that the machining accuracy is better at the initial voltage.