Diamond coating on WC-Co and WC for cutting tools

K. Shibuki, K. Sasaki, M. Yagi, T. Suzuki, Yuichi Ikuhara

    研究成果: Article査読

    48 被引用数 (Scopus)

    抄録

    Cemented carbide (WC-Co) and hot-pressed tungsten carbide (WC) were diamond coated at 850-950°C by the microwave plasma chemical vapour deposition method for use as cutting tools. First, WC inserts without Co were diamond coated utilizing the decarburization method to roughen the surface before diamond deposition. Accordingly, the absence of Co improved the adhesion strength with diamond films, which enabled the machining of Al-Si alloys with a sufficient lifetime. Similarly, the decarburization method was applied to WC-6 wt.%Co inserts and their cutting performance was compared with that of diamond-coated WC. The diamond-coated WC-6%Co inserts showed quite high adhesion strength, enough to cut Al-Si alloys for practical purposes, although slightly inferior to that of diamond-coated WC.

    本文言語English
    ページ(範囲)369-373
    ページ数5
    ジャーナルSurface and Coatings Technology
    68-69
    C
    DOI
    出版ステータスPublished - 1994 1月 1

    ASJC Scopus subject areas

    • 化学 (全般)
    • 凝縮系物理学
    • 表面および界面
    • 表面、皮膜および薄膜
    • 材料化学

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