Fine grained cemented carbide cutting tool insert
    2.
    发明授权
    Fine grained cemented carbide cutting tool insert 有权
    细粒硬质合金刀具刀片

    公开(公告)号:US08283058B2

    公开(公告)日:2012-10-09

    申请号:US12126121

    申请日:2008-05-23

    IPC分类号: B32B9/00 C23C14/06

    摘要: The present invention relates to a cuffing insert for turning in heat resistant superalloys and stainless steels comprising a very fine grained hard substrate and a coating. The substrate comprises WC from about 5 to about 8 wt % Co and from about 0.3 to about 1.5 wt % Cr. In addition to that ppm levels of Ti and Ta are present. The ratio of Me/Co=(at-% Ti+ at-% Nb+ at-% Ta)/at-% Co is lower than or equal to about 0.014−(CW_Cr)*0.008 and higher than about 0.0005. The average sintered WC-grain size is from about 0.5 to about 0.95 μm and CW_Cr from about 0.75 to about 0.95. The cemented carbide body is coated with a PVD TixAl1-xN-coating with an average composition of x being greater than about 0.4 but less than about 0.9, present as a single or multilayer coating with a total thickness of from about 1 to about 6 μm.

    摘要翻译: 本发明涉及一种用于转动耐热超级合金和包含非常细粒状硬质基材和涂层的不锈钢的滚筒式插入件。 基材包含约5至约8重量%的Co和约0.3至约1.5重量%的Cr的WC。 除了存在ppm和水平的Ti和Ta外。 Me / Co =(at-%Ti + at-%Nb + at-%Ta)/ at-%Co的比例低于或等于约0.014-(CW_Cr)* 0.008且高于约0.0005。 平均烧结WC颗粒尺寸为约0.5至约0.95μm,CW_Cr为约0.75至约0.95。 硬质合金体涂覆有平均组成为x大于约0.4但小于约0.9的PVD TixAl1-xN涂层,作为总厚度为约1至约6μm的单层或多层涂层 。

    Cermet body and a method of making a cermet body
    3.
    发明授权
    Cermet body and a method of making a cermet body 有权
    金属陶瓷体和制造金属陶瓷体的方法

    公开(公告)号:US09187810B2

    公开(公告)日:2015-11-17

    申请号:US12630998

    申请日:2009-12-04

    IPC分类号: C22C29/10 C22C1/05 B22F5/00

    摘要: The invention relates to a cermet body essentially free from nitrogen where the binder phase is Co in an amount of from about 5 to about 25 vol % Co, further comprising TiC and WC in amounts so that the atomic Ti:W ratio is from about 2.5 to about 10. The cermet body further comprising Cr in an amount such that the atomic Cr:Co ratio is from about 0.025 to about 0.14. The cermet body is free from nucleated of Ti—W—C cores. The invention also relates to a method of making a cermet body.

    摘要翻译: 本发明涉及一种基本上不含氮的金属陶瓷体,其中粘结相为Co,其量为约5至约25体积%Co,进一步包含TiC和WC,其量使得原子Ti:W比为约2.5 金属陶瓷体还含有使原子Cr:Co比为约0.025至约0.14的量的Cr。 金属陶瓷体不含Ti-W-C核的成核体。 本发明还涉及制造金属陶瓷体的方法。

    Cermet body and a method of making a cermet body
    4.
    发明授权
    Cermet body and a method of making a cermet body 有权
    金属陶瓷体和制造金属陶瓷体的方法

    公开(公告)号:US08968642B2

    公开(公告)日:2015-03-03

    申请号:US13325086

    申请日:2011-12-14

    CPC分类号: C22C1/051 C22C29/10

    摘要: A TiC-based cermet body includes TiC and WC so that the atomic ratio Ti/W is between 2 to 5, and cobalt as the binder phase is present in an amount of between 5 to 25 vol %. Further, the cermet body has at least one element from group V of the periodic table, Mx, so that the atomic ratio Ti/Mx is between 4 to 20 and the atomic ratio W/Mx is between 1 to 6. The cermet body also has Cr in an amount such that the atomic Cr/Co ratio is from 0.025 to 0.14. The cermet body includes both undissolved TiC cores with a rim of (Ti,W,Mx)C alloy as well as (Ti,W,Mx)C grains which have been formed during sintering. A method of making a cermet body is also disclosed.

    摘要翻译: TiC基金属陶瓷体包括TiC和WC,原子比Ti / W为2〜5,作为粘结相的钴的存在量为5〜25体积%。 此外,金属陶瓷体具有至少一种来自元素周期表V的元素Mx,使得原子比Ti / Mx为4〜20,原子比W / Mx为1〜6。金属陶瓷体也 具有使原子Cr / Co比为0.025〜0.14的量的Cr。 金属陶瓷体包括具有(Ti,W,Mx)C合金边缘的未溶解的TiC芯以及在烧结期间形成的(Ti,W,Mx)C晶粒。 还公开了制造金属陶瓷体的方法。

    CERMET BODY AND A METHOD OF MAKING A CERMET BODY
    5.
    发明申请
    CERMET BODY AND A METHOD OF MAKING A CERMET BODY 有权
    CERMET身体和制造CERMET身体的方法

    公开(公告)号:US20120156083A1

    公开(公告)日:2012-06-21

    申请号:US13325086

    申请日:2011-12-14

    IPC分类号: B22F3/10 C22C29/02

    CPC分类号: C22C1/051 C22C29/10

    摘要: A TiC-based cermet body includes TiC and WC so that the atomic ratio Ti/W is between 2 to 5, and cobalt as the binder phase is present in an amount of between 5 to 25 vol %. Further, the cermet body has at least one element from group V of the periodic table, Mx, so that the atomic ratio Ti/Mx is between 4 to 20 and the atomic ratio W/Mx is between 1 to 6. The cermet body also has Cr in an amount such that the atomic Cr/Co ratio is from 0.025 to 0.14. The cermet body includes both undissolved TiC cores with a rim of (Ti,W,Mx)C alloy as well as (Ti,W,Mx)C grains which have been formed during sintering. A method of making a cermet body is also disclosed.

    摘要翻译: TiC基金属陶瓷体包括TiC和WC,原子比Ti / W为2〜5,作为粘结相的钴的存在量为5〜25体积%。 此外,金属陶瓷体具有至少一种来自元素周期表V的元素Mx,使得原子比Ti / Mx为4〜20,原子比W / Mx为1〜6。金属陶瓷体也 具有使原子Cr / Co比为0.025〜0.14的量的Cr。 金属陶瓷体包括具有(Ti,W,Mx)C合金边缘的未溶解的TiC芯以及在烧结期间形成的(Ti,W,Mx)C晶粒。 还公开了制造金属陶瓷体的方法。