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59 条记录 (耗时 0.017 秒)

    Surface-Coated Cutting Tool
    41.
    发明申请
    Surface-Coated Cutting Tool 审中-公开

    公开(公告)号：US20200055790A1

    公开(公告)日：2020-02-20

    申请号：US16341374

    申请日：2017-09-20

    申请人： SUMITOMO ELECTRIC HARDMETAL CORP.

    发明人： Makoto Setoyama ,  Nozomi Tsukihara ,  Yuki Tsutsumiuchi ,  Satoru Kukino ,  Yusuke Matsuda ,  Hironari Moroguchi

    IPC分类号： C04B41/89 ,  B23B27/14 ,  C04B41/50

    摘要： A surface-coated cutting tool including a substrate including a rake face and a flank face and a coating which covers a surface of the substrate is provided. The substrate is made of a cBN sintered material or a ceramic sintered material. The coating includes an alternating layer. The alternating layer is made by alternately stacking a first layer and a second layer different in composition from the first layer. The first layer contains Al, Cr, and N. The second layer contains Ti, Al, and N. A ratio T1/T2 between a thickness Ti of the first layer and a thickness T2 of the second layer is not lower than 0.1 and lower than 1. There are thirty or more interfaces at which the first layer and the second layer are in contact with each other.

    CUTTING TOOL AND MANUFACTURING METHOD THEREOF
    42.
    发明申请
    CUTTING TOOL AND MANUFACTURING METHOD THEREOF 审中-公开

    公开(公告)号：US20190054545A1

    公开(公告)日：2019-02-21

    申请号：US15764125

    申请日：2017-08-25

    申请人： SUMITOMO ELECTRIC HARDMETAL CORP.

    发明人： Gaku Harada ,  Yoshinori Tanigawa ,  Satoru Kukino

    IPC分类号： B23B27/20 ,  B23C5/16 ,  B23D77/00 ,  B23K26/352 ,  B23P15/46

    摘要： A cutting tool according to an aspect of the present disclosure includes a cutting edge portion which contains at least one of cubic boron nitride and polycrystalline diamond. The cutting edge portion includes a flank face, a negative land contiguous to the flank face, and a cutting edge formed by a ridgeline between the flank face and the negative land. At least one of the negative land and the flank face is provided with a plurality of recesses and a projection. The projection is formed by arranging the edges of adjacent recesses in contact with each other.

    CUTTING TOOL
    43.
    发明申请
    CUTTING TOOL 审中-公开

    公开(公告)号：US20190001423A1

    公开(公告)日：2019-01-03

    申请号：US16065223

    申请日：2016-11-15

    申请人： SUMITOMO ELECTRIC HARDMETAL CORP. ,  Sumitomo Electric Industries, Ltd.

    发明人： Yusuke Matsuda ,  Taisuke Higashi ,  Satoru Kukino ,  Takashi Kanda

    IPC分类号： B23C5/10

    摘要： A cutting tool includes a shaft portion and a plurality of edge region groups. The ridgeline between the first rake face portion and the first flank face portion constitutes a first cutting edge portion. The ridgeline between the second rake face portion and the second flank face portion constitutes a second cutting edge portion. As seen from the direction perpendicular to a plane tangent to the outer peripheral surface, in a state where the central axis overlaps a first end on the front end side of the first cutting edge portion, the inclination angle of the first cutting edge portion relative to the central axis is larger than the inclination angle of a straight line relative to the central axis, the straight line connecting the first end to a second end on the front end side of the second cutting edge portion.

    Cubic boron nitride sintered material and method of producing same
    45.
    发明授权
    Cubic boron nitride sintered material and method of producing same 有权

    公开(公告)号：US11629101B2

    公开(公告)日：2023-04-18

    申请号：US17625749

    申请日：2020-07-17

    申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD. ,  SUMITOMO ELECTRIC HARDMETAL CORP.

    发明人： Hisaya Hama ,  Katsumi Okamura ,  Akito Ishii ,  Satoru Kukino

    IPC分类号： C04B35/5831 ,  C04B35/645

    摘要： A cubic boron nitride sintered material includes: more than or equal to 20 volume % and less than 80 volume % of cubic boron nitride grains; and more than 20 volume % and less than or equal to 80 volume % of a binder phase, and when a carbon content is measured from a cubic boron nitride grain into the binder phase in a direction perpendicular to an interface between the cubic boron nitride grain and the binder phase using TEM-EDX, a first region having a carbon content larger than an average value of a carbon content of the binder phase exists, the interface exists in the first region, and a length of the first region is more than or equal to 0.1 nm and less than or equal to 10 nm.

    Cubic boron nitride sintered material
    47.
    发明授权
    Cubic boron nitride sintered material 有权

    公开(公告)号：US11352298B2

    公开(公告)日：2022-06-07

    申请号：US17255550

    申请日：2019-12-16

    申请人： Sumitomo Electric Industries, Ltd. ,  SUMITOMO ELECTRIC HARDMETAL CORP.

    发明人： Akito Ishii ,  Katsumi Okamura ,  Hironari Moroguchi ,  Satoru Kukino

    IPC分类号： C04B35/5831

    摘要： A cubic boron nitride sintered material includes: more than 80 volume % and less than 100 volume % of cubic boron nitride grains; and more than 0 volume % and less than 20 volume % of a binder phase. The binder phase includes: at least one selected from a group consisting of a simple substance, an alloy, and an intermetallic compound selected from a group consisting of a group 4 element, a group 5 element, a group 6 element in a periodic table, aluminum, silicon, cobalt, and nickel. A dislocation density of the cubic boron nitride grains is more than or equal to 1×1015/m2 and less than or equal to 1×1017/m2.