Influence of Gap Phenomenon on Various Kinds of   Powder-Suspended EDM

Hideki Takezawa; Tadashi Asano; Naotake Mohri

doi:10.20965/ijat.2013.p0419

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IJAT Vol.7 No.4 pp. 419-425

doi: 10.20965/ijat.2013.p0419

(2013)

Paper:

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Influence of Gap Phenomenon on Various Kinds of Powder-Suspended EDM

Hideki Takezawa^, Tadashi Asano^, and Naotake Mohri^

^*Department of Innovative Mechanical Engineering, Kogakuin University, 139 Inume-cho, Hachioji-shi, Tokyo 193-0802, Japan

^**NEMY CORPORATION, 3-11-6 Ikejiri, Setagaya-ku, Tokyo, Japan

^***National Institution for Academic Degrees and University Evaluation, 1-29-1 Gakuen-nishimachi, Kodaira-shi, Tokyo, Japan

Received:

October 30, 2012

Accepted:

May 30, 2013

Published:

July 5, 2013

Keywords:

electrical discharge machining, powder-suspended fluid, finish machining

Abstract

Powder-suspended Electrical Discharge Machining (EDM) produces a mirror-like finish due to the electrical discharge dispersed using powder-suspended fluid. Machined surface roughness differed, however, when several powders are mixed, so the influence of the gap phenomenon was not apparent. To vary the gap phenomenon in powder-suspended EDM, the gap region is observed using a high-speed camera. This report describes observation results in powdersuspended EDM.

Cite this article as:

H. Takezawa, T. Asano, and N. Mohri, “Influence of Gap Phenomenon on Various Kinds of Powder-Suspended EDM,” Int. J. Automation Technol., Vol.7 No.4, pp. 419-425, 2013.

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References

[1] N. Mohri et al., “Assisting Electrode Method for Machining Insulating Ceramics,“ Annals of CIRP, Vol.45, No.1, p. 201, 1996.
[2] N. Mohri et al., “Finishing on the Large Area of Work Surface by EDM,“ J. of the Japan Society of Precision Engineering, Vol.53, No.1, pp. 124-128, 1987. (in Japanese)
[3] D. Scott et al., “Effect of The Addition of Graphite Powder to Kerosene Used as The Dielectric Fluid in Electrical Discharge Machining,“ WEAR, Vol.70, p. 133, 1981.
[4] Y. Uno et al., “Surface Modification by EDM with Nickel Powder Mixed Fluid,“ Int. J. of Electrical Machining, No.4, pp. 47-52, 1999.
[5] K. Furutani et al., “Surface Modification by Electrical Discharge Machining with Titanium Powder Suspended in Working Fluid,“ Proc. of 14th Annual Meeting of American Society for Precision Engineering, No.20, pp. 159-162, 1999.
[6] K. Yanatori et al., “Study on Debris movement in EDM Gap,“ J. of the Japan Society of Electrical Machining Engineers, Vol.29, No.61, pp. 19-27, 1995. (in Japanese)
[7] Y. Uno et al., “Surface Generation Mechanism in Electrical DischargeMachining with Silicon PowderMixed Fluid,“ Int. J. of Electrical Machining, No.2, pp. 13-18, 1997.
[8] H. Takezawa et al., “A Study on Single Discharge Machining with Low Melting Temperature Alloy,“ 15th Int. symp. for Electromachining (ISEM XV), pp. 69-74, 2007.
[9] K. Yanatori et al., “Study on Debris movement in EDM Gap,“ J. of the Japan Society of Electrical Machining Engineers, Vol.29, No.61, 19, 1995. (in Japanese)
[10] T. Suda and T. Sata, J. of the Japan Society of Electrical Machining Engineers, Vol.7, No.14, 19, 1974. (in Japanese)

This article is published under a Creative Commons Attribution-NoDerivatives 4.0 Internationa License.

[1] [1] N. Mohri et al., “Assisting Electrode Method for Machining Insulating Ceramics,“ Annals of CIRP, Vol.45, No.1, p. 201, 1996.

[2] [2] N. Mohri et al., “Finishing on the Large Area of Work Surface by EDM,“ J. of the Japan Society of Precision Engineering, Vol.53, No.1, pp. 124-128, 1987. (in Japanese)

[3] [3] D. Scott et al., “Effect of The Addition of Graphite Powder to Kerosene Used as The Dielectric Fluid in Electrical Discharge Machining,“ WEAR, Vol.70, p. 133, 1981.

[4] [4] Y. Uno et al., “Surface Modification by EDM with Nickel Powder Mixed Fluid,“ Int. J. of Electrical Machining, No.4, pp. 47-52, 1999.

[5] [5] K. Furutani et al., “Surface Modification by Electrical Discharge Machining with Titanium Powder Suspended in Working Fluid,“ Proc. of 14th Annual Meeting of American Society for Precision Engineering, No.20, pp. 159-162, 1999.

[6] [6] K. Yanatori et al., “Study on Debris movement in EDM Gap,“ J. of the Japan Society of Electrical Machining Engineers, Vol.29, No.61, pp. 19-27, 1995. (in Japanese)

[7] [7] Y. Uno et al., “Surface Generation Mechanism in Electrical DischargeMachining with Silicon PowderMixed Fluid,“ Int. J. of Electrical Machining, No.2, pp. 13-18, 1997.

[8] [8] H. Takezawa et al., “A Study on Single Discharge Machining with Low Melting Temperature Alloy,“ 15th Int. symp. for Electromachining (ISEM XV), pp. 69-74, 2007.

[9] [9] K. Yanatori et al., “Study on Debris movement in EDM Gap,“ J. of the Japan Society of Electrical Machining Engineers, Vol.29, No.61, 19, 1995. (in Japanese)

[10] [10] T. Suda and T. Sata, J. of the Japan Society of Electrical Machining Engineers, Vol.7, No.14, 19, 1974. (in Japanese)

Influence of Gap Phenomenon on Various Kinds of Powder-Suspended EDM

Hideki Takezawa*, Tadashi Asano**, and Naotake Mohri***

Hideki Takezawa^, Tadashi Asano^, and Naotake Mohri^