CHROMIUM-CONTAINING CEMENTED TUNGSTEN CARBIDE COATED CUTTING INSERT

    公开(公告)号:WO2002014578A3

    公开(公告)日:2002-02-21

    申请号:PCT/US2001/021166

    申请日:2001-07-03

    Abstract: A chromium-containing coated cemented tungsten carbide cutting insert (10, 40) that has a substrate (18, 42) and a coating (30, 32, 34, 50). The substrate comprises between about 5.7 and about 6.4 weight percent cobalt, between about 0.2 and about 0.8 weight percent chromium and the balance tungsten and carbon, and a coercive force of about 195 to 245 oersteds.

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