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    CUTTING TOOL
    1.
    发明公开
    CUTTING TOOL 审中-公开

    公开(公告)号：EP4438753A1

    公开(公告)日：2024-10-02

    申请号：EP23165500.2

    申请日：2023-03-30

    申请人： AB Sandvik Coromant

    发明人： GARCIA, José Luis ,  CHYCHKO, Andrei

    IPC分类号： C22C1/051 ,  C22C29/06 ,  C22C29/08 ,  B22F5/00

    CPC分类号： C22C29/08 ,  C22C29/067 ,  B22F2005/00120130101 ,  C22C1/051

    摘要： The present invention relates to a cutting tool comprising a cemented carbide substrate with a Fe-based binder, where the cemented carbide further comprising Ni, Cr and Al so that the weight fraction Ni/(Fe+Ni) is between 0.10 and 0.25, the weight fraction Cr/(Fe+Ni+Cr+Al) is between is between 0.005 and 0.05, the weight fraction Al/(Fe+Ni+Cr+Al) is between 0.01 and 0.05; and wherein the amount of Fe in the metal binder is at least 70 wt%. The invention also relates to a method of making such cutting tool.

    A CEMENTED CARBIDE CUTTING TOOL
    4.
    发明公开
    A CEMENTED CARBIDE CUTTING TOOL 审中-公开

    公开(公告)号：EP4389923A1

    公开(公告)日：2024-06-26

    申请号：EP22214877.7

    申请日：2022-12-20

    申请人： AB Sandvik Coromant

    发明人： GARCIA, José ,  CHYCHKO, Andrei

    IPC分类号： C22C1/055 ,  C22C29/06 ,  C22C29/08 ,  B22F3/15 ,  B22F5/00

    CPC分类号： C22C29/08 ,  C22C29/067 ,  B22F2005/00120130101 ,  C22C1/055 ,  B22F2998/1020130101 ,  B22F3/15

    摘要： The invention relates to a cutting tool comprising a cemented carbide substrate where the cemented carbide comprises a hard phase comprising WC, a mixed carbide phase and a metal binder and where the where the cemented carbide comprises the elements V, Cr, Ni and Fe in such amounts so that:
    -the weight fraction V/(V+Cr+Ni+Fe) is between 0.0030 and 0.050,
    -the weight fraction Cr/(V+Cr+Ni+Fe) is between 0.010 and 0.040
    -the weight fraction Ni/(V+Cr+Ni+Fe) is between 0.030 and less than 0.050
    -the weight fraction Fe/(V+Cr+Ni+Fe) is between 0.86 and 0.967.
    The cemented carbide according to the present invention shows toughness and hardness properties comparable with cemented carbides with Co-binder.

    CUTTING TOOL
    7.
    发明公开
    CUTTING TOOL 审中-公开

    公开(公告)号：EP3393703A1

    公开(公告)日：2018-10-31

    申请号：EP16810406.5

    申请日：2016-12-16

    申请人： Sandvik Intellectual Property AB

    发明人： ÅKESSON, Leif ,  GARCIA, José, Luis ,  FINNEID, Kåre

    IPC分类号： B22F5/00 ,  B22F7/08 ,  C22C29/08

    CPC分类号： C22C29/08 ,  B22F2005/001 ,  C22C1/051 ,  C22C29/067

    摘要： The invention relates to a cutting tool comprising a cemented carbide substrate comprising WC and a binder phase comprising one or more of Co, Fe and Ni wherein the cemented carbide also comprises a finely dispersed eta phase comprising Me12C and/or Me6C carbides where Me is one or more metals selected from W, Mo and the binder phase metals wherein the substoichiometric carbon content in the cemented carbide is between -0.30 to - 0.16 wt%. The cutting tool will achieve an improved resistance against comb cracks.