Micro-electrical discharge machining of polycrystalline diamond using rotary cupronickel electrode

Jiwang Yan, Kazunori Watanabe, Tojiro Aoyama

研究成果: Article査読

39 被引用数 (Scopus)

抄録

Cupronickel was used as the electrode material to fabricate microstructures on polycrystalline diamond by electrical discharge machining (EDM). The electrodes were shaped into tiny rotary wheels driven by the flow of EDM fluid. Results showed that material removal rate was improved by a factor of five compared to conventional electrode materials. Raman spectroscopy and energy dispersive X-ray spectroscopy indicated that graphitization of diamond and diffusion-based chemical reactions between nickel and diamond dominated the EDM process. Effects of electrode rotation rate and discharge energy on the EDM characteristics were clarified. High form accuracy (∼0.5 μm/1 mm) and low surface roughness (∼0.1 μm Ra) were obtained.

本文言語English
ページ(範囲)209-212
ページ数4
ジャーナルCIRP Annals - Manufacturing Technology
63
1
DOI
出版ステータスPublished - 2014

ASJC Scopus subject areas

  • 機械工学
  • 産業および生産工学

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