TY - GEN
T1 - Multiple discharges phenomena in EDM using electrostatic induction feeding method
AU - Feng, Guanglei
AU - Yang, Xiaodong
AU - Tian, Kun
AU - Wang, Xuezhi
PY - 2012
Y1 - 2012
N2 - In the micro EDM method by electrostatic induction feeding, a pulse voltage source is coupled to the tool electrode by a capacitor in order to reduce the minimum discharge energy per pulse. Positive pulse voltage and negative pulse voltage are applied to the tool electrode alternately, relative to the workpiece. In this study, it was found that when the feeding capacitance was large, multiple discharges occurred frequently during a single pulse duration of the pulse voltage source. Since the impedance of the pulse voltage source which was produced by the authors varied depending on the polarity, the multiple discharges occurred in the polarity with the higher impedance, while they did not occur in the opposite polarity. It was also found that when multiple discharges occurred, the discharge energy was released intermittently in the multiple discharges. In this study, using multiple discharges phenomena, better surface was obtained with higher removal speed.
AB - In the micro EDM method by electrostatic induction feeding, a pulse voltage source is coupled to the tool electrode by a capacitor in order to reduce the minimum discharge energy per pulse. Positive pulse voltage and negative pulse voltage are applied to the tool electrode alternately, relative to the workpiece. In this study, it was found that when the feeding capacitance was large, multiple discharges occurred frequently during a single pulse duration of the pulse voltage source. Since the impedance of the pulse voltage source which was produced by the authors varied depending on the polarity, the multiple discharges occurred in the polarity with the higher impedance, while they did not occur in the opposite polarity. It was also found that when multiple discharges occurred, the discharge energy was released intermittently in the multiple discharges. In this study, using multiple discharges phenomena, better surface was obtained with higher removal speed.
KW - EDM (Electrical Discharge Machining)
KW - Electrostatic Induction Feeding
KW - Impedance
KW - Multiple Discharges
KW - Stray Capacitance
UR - https://www.scopus.com/pages/publications/84870589485
U2 - 10.4028/www.scientific.net/KEM.523-524.316
DO - 10.4028/www.scientific.net/KEM.523-524.316
M3 - 会议稿件
AN - SCOPUS:84870589485
SN - 9783037855096
T3 - Key Engineering Materials
SP - 316
EP - 321
BT - Emerging Technology in Precision Engineering XIV
PB - Trans Tech Publications Ltd
T2 - 14th International Conference on Precision Engineering, ICPE 2012
Y2 - 8 November 2012 through 10 November 2012
ER -