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

Abstract:

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.

• Periodical: Key Engineering Materials (Volumes 447-448)
• Pages: 263-267
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.447-448.263
• Online since: September 2010
• Authors: Xiao Dong Yang, Yong Wan, Fu Qiang Hu
• Keywords: Discharge Energy, Electrostatic Induction Feeding, Micro-EDM, Oscillating Current, Stray Inductance

References

[1] Masuzawa, T., 2000, State of the Art of Micromachining, Annals of the CIRP, 49, 2: 473 -488.

DOI: 10.1016/s0007-8506(07)63451-9

[2] Kawakami, T., Kunieda, M., 2005, Study on Factors Determining Limits of Minimum Machinable Size in Micro EDM, Annals of the CIRP, 54, 1: 167-170.

DOI: 10.1016/s0007-8506(07)60075-4

[3] Kunieda, M., Hayasaka, A., Yang, X. D., Sano, S., Araie, I., 2007, Study on Nano EDM Using Capacity Coupled Pulse Generator, Annals of the CIRP, 56/1: 213-216.

DOI: 10.1016/j.cirp.2007.05.051

[4] Yang, X. D., Kimori, M., Kunieda, M., Sano, S., Araie, I., 2007, Machining Properties of Micro EDM Using Electrostatic Induction Feeding, Proceedings of ISEM XV, 231-234.

[5] Kunieda, M., 2008, Challenges to Miniaturization in Micro EDM, Proceeding of the twenty-third annual meeting of the American Society for Precision Engineering and the twelfth ICPE Portland, Oregon.

[6] Koyano, T., Kunieda, M., 2009, Micro-hole Drilling by EDM using Electrostatic Induction Feeding Method, Proceedings of ASPEN (2009).

[7] Yang, X. D., Kunieda, M., Sano, S., 2008, Study on Influence of Stray Capacitance on Micro EDM using Electrostatic Induction Feeding, IJEM, 35-40.

DOI: 10.2526/ijem.13.35

[8] Kimori, M., Kunieda, M., Sano, S., 2007, Mechanism of Determining Discharge Energy in Electrostatic Induction Feeding EDM, Proceedings of AEMS2007, 242-245.