Surface modified cemented carbides
    1.
    发明授权
    Surface modified cemented carbides 失效
    表面改性胶结碳化物

    公开(公告)号:US4913877A

    公开(公告)日:1990-04-03

    申请号:US293044

    申请日:1989-01-03

    申请人: Warren C. Yohe

    发明人: Warren C. Yohe

    IPC分类号: C22C29/02 C22C29/08 C23C30/00

    摘要: A cemented carbide cutting tool substrate has enhanced surface toughness due to binder enrichment and depletion of aluminum nitride near the peripheral surface.

    摘要翻译: 硬质合金刀具基材由于粘合剂富集和在外围表面附近的氮化铝的消耗而具有增强的表面韧性。

    Coated carbide cutting tool insert
    4.
    发明授权
    Coated carbide cutting tool insert 失效
    涂层硬质合金刀具刀片

    公开(公告)号:US4548786A

    公开(公告)日:1985-10-22

    申请号:US489286

    申请日:1983-04-28

    申请人: Warren C. Yohe

    发明人: Warren C. Yohe

    摘要: Cobalt cemented carbide cutting inserts are prepared for coating with a hard, wear-resistant coating by providing a cobalt enriched zone on a surface to be coated. Cobalt enrichment is effectuated by means of nitrogen gas contact with the carbide followed by a period of vacuum sintering during its sintering process of manufacture.

    摘要翻译: 通过在待涂覆的表面上提供富钴区,制备硬质合金切削刀片用于涂覆硬质耐磨涂层。 钴的富集通过与碳化物的氮气接触进行,随后在制造烧结过程中进行真空烧结。