标题：Ringing Effect and Reversed Current Analysis of RC-pulse Generator in Electrical Discharge Machining
作者：Zhang Min; Zhang Qinhe; Kong Dezheng; Bai Xue
通讯作者：Zhang, Q H
作者机构：[Zhang Min; Zhang Qinhe; Kong Dezheng; Bai Xue] Shandong Univ, Sch Mech Engn, Jinan 250061, Peoples R China.
会议名称：15th International Manufacturing Conference in China
会议日期：OCT 16-18, 2013
来源：ADVANCES IN MATERIALS MANUFACTURING SCIENCE AND TECHNOLOGY XV
关键词：Electrical Discharge Machining; Ringing effect; Reversed current;; RC-pulse generator; Discharge waveform
摘要：RC-pulse generator has a simple structure and it is easy to be made and repaired. Especially RC-pulse generator can provide high frequency and low energy discharges. Therefore RC-pulse generators are used in micro-EDM field. But its high tool wear ratio and low efficiency restrict its applications. Ringing effect is considered to have effect on the defects. This research was done to study the ringing effect in electrical discharge. Taguchi method was used and discharge curves of voltage and current were recorded and analyzed. Ringing effect plays a key role in discharges and reversed current. A waveform model established with ringing effect theory is almost the same as the waveforms recorded in the experiment. Reversed current exists in almost a half time of discharge period which is the representation of ringing effect. Suitable process parameters can reduce reversed current and proper improvements could eliminate reversed current which will reduce the tool wear ratio and increase the efficiency in RC-pulse generator.