scholarly journals Development of Micro EDM using Electrostatic Induction Feeding

2006 ◽  
Vol 72 (5) ◽  
pp. 636-640 ◽  
Author(s):  
Michihiro HANADA ◽  
Masanori KUNIEDA ◽  
Ichiro ARAIE
Keyword(s):  
Micro Edm ◽  
Electrostatic Induction

Study on Influence of Stray Inductance in Micro EDM Using Electrostatic Induction Feeding Method

2010 ◽  
Vol 447-448 ◽  
pp. 263-267 ◽  
Author(s):  
Xiao Dong Yang ◽  
Yong Wan ◽  
Fu Qiang Hu
Keyword(s):  
Experimental Investigation ◽  
Pulse Generator ◽  
Negative Influence ◽  
Discharge Circuit ◽  
Tool Electrode ◽  
Micro Edm ◽  
Discharge Energy ◽  
Stray Capacitance ◽  
Feeding Method ◽  
Electrostatic Induction

In the micro EDM method by electrostatic induction feeding, a pulse generator is coupled to the tool electrode by a capacitor, since the negative influence of the stray capacitance in the circuit can be eliminated, and the discharge energy per pulse can be minimized, thereby realizing discharge craters of nanometer order. However, there is still the stray inductance in the discharge circuit, other than the stray capacitance. In this study, in order to examine the influence of the stray inductance, experimental investigation was conducted.

scholarly journals Miniaturization of Micro EDM Using Electrostatic Induction Feeding Method

2010 ◽  
Vol 76 (10) ◽  
pp. 1151-1155 ◽  
Author(s):  
Masahito KIMORI ◽  
Masanori KUNIEDA
Keyword(s):  
Micro Edm ◽  
Feeding Method ◽  
Electrostatic Induction

Multiple Discharges Phenomena in EDM Using Electrostatic Induction Feeding Method

2012 ◽  
Vol 523-524 ◽  
pp. 316-321
Author(s):  
Guang Lei Feng ◽  
Xiao Dong Yang ◽  
Kun Tian ◽  
Xue Zhi Wang
Keyword(s):  
Single Pulse ◽  
Opposite Polarity ◽  
Pulse Voltage ◽  
Voltage Source ◽  
Tool Electrode ◽  
Micro Edm ◽  
Discharge Energy ◽  
Negative Pulse ◽  
Feeding Method ◽  
Electrostatic Induction

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.

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