Generation of Microelectrodes for Micro EDM


Article Preview

A new turning method to control the thrust force to be zero has already been proposed in our laboratory, and it is shown that micro shafts which diameters are less than 1 mm can be generated stably and repeatedly by applying this turning method. As an application of this turning method, a generating method of electrodes of micro electric discharge machining, EDM, for micro holes is proposed. When drilling a micro hole by EDM using an electrode with high aspect ratio, machined chip is difficult to be exhausted. Therefore, machining time has a tendency to be long and the electrode consumption becomes large. Standing in such a viewpoint, a new method to exhaust the chip smoothly by forming the micro electrode geometry is proposed in this paper. As the results of this study, it is confirmed that the machining time of micro holes can be shorted and the consumption of electrode can also be decreased experimentally.



Key Engineering Materials (Volumes 523-524)

Edited by:

Tojiro Aoyama, Hideki Aoyama, Atsushi Matsubara, Hayato Yoshioka and Libo Zhou




K. Miura et al., "Generation of Microelectrodes for Micro EDM", Key Engineering Materials, Vols. 523-524, pp. 310-315, 2012

Online since:

November 2012




[1] T. Masuzawa,M. Fujino,K. Kobayashi,T. Suzuki:Wire Electro Discharge Grinding for Micro-machining,Annals of the CIRP,Vol. 34,No. 1,1985, pp.431-434.


[2] H. Lee, A. Toride, T. Yamada and S. Araki: Study on the generation of micro shafts by turning operation, Journal of JSAT vol. 51, No. 11, 2007, pp.657-661.

[3] Kohichi MIURA,Masayuki TAKAHASHI,Takazo YAMADA and Hwa-Soo LEE:Fabrication of micro shapes by EDM with microelectrodes generated in turning operation,Advanced Material Research XIII Vol. 126-128, 2010,pp.375-380.