Micro-cutting characteristics of EDM fabricated high-precision polycrystalline diamond tools

Zhiyu Zhang, Huanming Peng, Jiwang Yan

研究成果: Article査読

78 被引用数 (Scopus)


To fabricate three-dimensional microstructures, such as micro dimples, micro grooves and micro channels, on ceramic mold materials, tool fabrication with super hard materials is an essential step. In this work, micro electro discharge machining (EDM) was used to fabricate high-precision polycrystalline diamond end mills. Form accuracy and edge sharpness in one micron level were achieved by utilizing electro discharge induced graphitization of diamond grains under extremely low discharge energy conditions. The cutting performance of the fabricated tools was examined by machining micro dimples and micro grooves on tungsten carbide mold substrates. Results showed that using the EDMfabricated tools, ductile mode machining of tungsten carbide was realized with a surface finish of 2 nm Ra, which is comparable to that produced by polishing.

ジャーナルInternational Journal of Machine Tools and Manufacture
出版ステータスPublished - 2013 2月

ASJC Scopus subject areas

  • 機械工学
  • 産業および生産工学


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