Newly developed CuW electrode for high performance EDM

Oue Shingo, Akira Okada, Uno Yoshiyuki, Shoji Takayuki, Fukushima Takahiro, Terada Osamu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper introduces a newly developed CuW electrode for high performance electrical discharge machining (EDM). Conventional CuW electrode used widely for high precision EDM is generally made by melting method, and the mixture ratio of Cu and W is restricted within narrow limits. On the other hand, it can be changed extensively in the case of a new CuW electrode made by powder sintering method. In order to obtain the higher metal removal rate with smaller electrode wear rate, the optimum mixture ratio of Cu and W was investigated. Experimental results show that the EDM characteristics such as metal removal rate, electrode wear rate and the surface finish for metal mold steel greatly depend on the mixture ratio of CuW electrode. The electrode wear rate could be reduced by using the new CuW electrode with proper mixture ratios, compared with the conventional one, since workpiece material adhered to the electrode end surface during machining and prevented the electrode from wearing with high temperature. Also, better machining stability and better surface finish could be attained under proper mixture ratios of Cu and W. Therefore, the new CuW electrode made by powder sintering method has high possibility for higher performance EDM.

Original languageEnglish
Title of host publicationICPMT2006 - Progress of Machining Technology - Proceedings of the 8th International Conference on Progress of Machining Technology
Pages273-276
Number of pages4
Publication statusPublished - 2006
Event8th International Conference on Progress of Machining Technology, ICPMT2006 - Matsue, Japan
Duration: Nov 9 2006Nov 11 2006

Other

Other8th International Conference on Progress of Machining Technology, ICPMT2006
CountryJapan
CityMatsue
Period11/9/0611/11/06

Fingerprint

Electric discharge machining
Electrodes
Metals
Wear of materials
Powders
Machining
Sintering
Steel
Melting

Keywords

  • CuW electorode
  • Electrical discharge machining(EDM)
  • Electrode wear
  • Powder sintering
  • Surface roughness

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering
  • Materials Science(all)

Cite this

Shingo, O., Okada, A., Yoshiyuki, U., Takayuki, S., Takahiro, F., & Osamu, T. (2006). Newly developed CuW electrode for high performance EDM. In ICPMT2006 - Progress of Machining Technology - Proceedings of the 8th International Conference on Progress of Machining Technology (pp. 273-276)

Newly developed CuW electrode for high performance EDM. / Shingo, Oue; Okada, Akira; Yoshiyuki, Uno; Takayuki, Shoji; Takahiro, Fukushima; Osamu, Terada.

ICPMT2006 - Progress of Machining Technology - Proceedings of the 8th International Conference on Progress of Machining Technology. 2006. p. 273-276.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Shingo, O, Okada, A, Yoshiyuki, U, Takayuki, S, Takahiro, F & Osamu, T 2006, Newly developed CuW electrode for high performance EDM. in ICPMT2006 - Progress of Machining Technology - Proceedings of the 8th International Conference on Progress of Machining Technology. pp. 273-276, 8th International Conference on Progress of Machining Technology, ICPMT2006, Matsue, Japan, 11/9/06.
Shingo O, Okada A, Yoshiyuki U, Takayuki S, Takahiro F, Osamu T. Newly developed CuW electrode for high performance EDM. In ICPMT2006 - Progress of Machining Technology - Proceedings of the 8th International Conference on Progress of Machining Technology. 2006. p. 273-276
Shingo, Oue ; Okada, Akira ; Yoshiyuki, Uno ; Takayuki, Shoji ; Takahiro, Fukushima ; Osamu, Terada. / Newly developed CuW electrode for high performance EDM. ICPMT2006 - Progress of Machining Technology - Proceedings of the 8th International Conference on Progress of Machining Technology. 2006. pp. 273-276
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AU - Osamu, Terada

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AB - This paper introduces a newly developed CuW electrode for high performance electrical discharge machining (EDM). Conventional CuW electrode used widely for high precision EDM is generally made by melting method, and the mixture ratio of Cu and W is restricted within narrow limits. On the other hand, it can be changed extensively in the case of a new CuW electrode made by powder sintering method. In order to obtain the higher metal removal rate with smaller electrode wear rate, the optimum mixture ratio of Cu and W was investigated. Experimental results show that the EDM characteristics such as metal removal rate, electrode wear rate and the surface finish for metal mold steel greatly depend on the mixture ratio of CuW electrode. The electrode wear rate could be reduced by using the new CuW electrode with proper mixture ratios, compared with the conventional one, since workpiece material adhered to the electrode end surface during machining and prevented the electrode from wearing with high temperature. Also, better machining stability and better surface finish could be attained under proper mixture ratios of Cu and W. Therefore, the new CuW electrode made by powder sintering method has high possibility for higher performance EDM.

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