Surface modification of cemented tungsten carbide with nickel binder by large-area electron beam

Akira Okada, Shuhei Misumi, Yasuhiro Okamoto

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Cemented tungsten carbide with nickel binder is often applied to the metal mold for electronic parts due to its non-magnetic feature. However, it is difficult to use conventional methods applied to metal molds made of steel for the surface finishing or modification of cemented tungsten carbides in some cases. The large-area EB irradiation for conventional cemented tungsten carbide with cobalt binder was studied in our previous papers. In this paper, surface finishing and modification of cemented tungsten carbide with nickel binder were investigated, and the effects of EB conditions on the surface characteristics were discussed. The experimental results indicated that the surface roughness decreased and the surface glossiness increased by the large-area EB irradiation. Also, the water repellency and the releasability of molded resin from the surface could be improved under proper EB conditions.

Original languageEnglish
Title of host publication10th International Conference on Progress of Machining Technology, ICPMT 2012
Pages80-83
Number of pages4
Publication statusPublished - Dec 1 2012
Event10th International Conference on Progress of Machining Technology, ICPMT 2012 - Tsubame, Niigata, Japan
Duration: Sep 25 2012 → Sep 27 2012

Publication series

Name10th International Conference on Progress of Machining Technology, ICPMT 2012

Other

Other10th International Conference on Progress of Machining Technology, ICPMT 2012
CountryJapan
CityTsubame, Niigata
Period9/25/12 → 9/27/12

Keywords

  • Cemented tungsten carbide
  • Large-area EB
  • Nickel binder
  • Surface modification
  • Water repellency

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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    Okada, A., Misumi, S., & Okamoto, Y. (2012). Surface modification of cemented tungsten carbide with nickel binder by large-area electron beam. In 10th International Conference on Progress of Machining Technology, ICPMT 2012 (pp. 80-83). (10th International Conference on Progress of Machining Technology, ICPMT 2012).