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    CUBIC BORON NITRIDE SINTERED COMPACT
    3.
    发明公开
    CUBIC BORON NITRIDE SINTERED COMPACT 审中-公开

    公开(公告)号：EP4000779A1

    公开(公告)日：2022-05-25

    申请号：EP20841409.4

    申请日：2020-07-17

    申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD. ,  Sumitomo Electric Hardmetal Corp.

    发明人： HAMA, Hisaya ,  OKAMURA, Katsumi ,  ISHII, Akito ,  KUKINO, Satoru

    IPC分类号： B23B27/14 ,  C04B35/5831

    摘要： A cubic boron nitride sintered material includes: more than or equal to 50 volume% and less than 80 volume% of cubic boron nitride grains; and more than 20 volume% and less than or equal to 50 volume% of a binder phase, wherein the binder phase includes at least one selected from a group consisting of a compound composed of at least one element selected from a group consisting of a group 4 element, a group 5 element, a group 6 element in a periodic table, and aluminum, and at least one element selected from a group consisting of nitrogen, carbon, boron, and oxygen, and a solid solution originated from the compound, and when an oxygen content is measured in a direction perpendicular to an interface between cubic boron nitride grains using TEM-EDX, a first region having an oxygen content larger than an average value of an oxygen content of a cubic boron nitride grain exists, the interface exists in the first region, and a length of the first region along the direction perpendicular to the interface is more than or equal to 0.1 nm and less than or equal to 10 nm.

    CUTTING TOOL
    5.
    发明公开
    CUTTING TOOL 审中-公开

    公开(公告)号：EP3375553A1

    公开(公告)日：2018-09-19

    申请号：EP16921616.5

    申请日：2016-11-15

    申请人： Sumitomo Electric Hardmetal Corp. ,  Sumitomo Electric Industries, Ltd.

    发明人： MATSUDA, Yusuke ,  HIGASHI, Taisuke ,  KUKINO, Satoru ,  KANDA, Takashi

    IPC分类号： B23C5/10

    CPC分类号： B23C5/10

    摘要： A cutting tool includes a shaft portion and a plurality of edge region groups. The shaft portion extends along the central axis and includes an outer peripheral surface surrounding the central axis. The plurality of edge region groups are spirally provided on the outer peripheral surface. The plurality of edge region groups include a first edge region group divided by a first nick. The first edge region group includes a first edge region and a second edge region that is adjacent to the first edge region, with the first nick lying therebetween. The first edge region includes a first rake face portion and a first flank face portion. The ridgeline between the first rake face portion and the first flank face portion constitutes a first cutting edge portion. The second edge region includes a second rake face portion and a second flank face 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.

    SINTERED COMPACT
    6.
    发明公开
    SINTERED COMPACT 审中-公开
    烧结的紧凑

    公开(公告)号：EP3210955A1

    公开(公告)日：2017-08-30

    申请号：EP15852701.0

    申请日：2015-10-14

    申请人： Sumitomo Electric Industries, Ltd.

    发明人： CHIHARA, Kentaro ,  MOROGUCHI, Hironari ,  HARADA, Takashi ,  KUKINO, Satoru

    IPC分类号： C04B35/599 ,  B23B27/14 ,  C01B21/082 ,  C04B35/626 ,  C04B35/64 ,  C04B35/645

    CPC分类号： B23B27/14 ,  C01B21/082 ,  C04B35/5831 ,  C04B35/597 ,  C04B35/626 ,  C04B35/62836 ,  C04B35/64 ,  C04B35/645 ,  C04B2235/386 ,  C04B2235/3873

    摘要： A sintered body includes a first hard particle, a second hard particle, and a binder. The first hard particle is an M sialon particle having a coating layer. The M sialon particle is represented by M x Si (6-x-z) Al z O z N (8-z) (in the formula, M is a metal containing at least one selected from the group consisting of calcium, strontium, barium, scandium, yttrium, lanthanoid, manganese, iron, cobalt, nickel, copper, and group IV, group V, and group VI elements of the periodic table, and relationships of 0.01 ≤ x ≤ 2, 0.01 ≤ z ≤ 4.2, and 1.79 ≤ (6 - x - z) ≤ 5.98 are satisfied). The second hard particle is a cubic boron nitride particle.

    摘要翻译： 烧结体包含第一硬质颗粒，第二硬质颗粒和粘合剂。 第一硬质粒子是具有被覆层的M赛隆粒子。 M硅铝土颗粒由M x Si（6-xz）Al z O z N（8-z）表示（式中，M为含有选自钙，锶，钡，钪，钇，镧系元素， 锰，铁，钴，镍，铜和IV族，V族和VI族元素，并且0.01≤x≤2,0.01≤z≤4.2和1.79≤（6-x-z ）≤5.98）。 第二硬质颗粒是立方氮化硼颗粒。

    CUTTING INSERT AND MANUFACTURING METHOD THEREFOR
    8.
    发明公开
    CUTTING INSERT AND MANUFACTURING METHOD THEREFOR 审中-公开
    切割插入和制造方法

    公开(公告)号：EP3195961A1

    公开(公告)日：2017-07-26

    申请号：EP15841460.7

    申请日：2015-09-11

    申请人： Sumitomo Electric Industries, Ltd.

    发明人： KUKINO, Satoru ,  CHIHARA, Kentaro ,  HARADA, Takashi

    IPC分类号： B23B27/14 ,  B23B27/20 ,  B23P15/28 ,  B24B3/34

    CPC分类号： B23B27/145 ,  B23B2200/0447 ,  B23B2200/242 ,  B23B2200/28 ,  B23B2200/286 ,  B23B2200/3654 ,  B23B2222/16 ,  B23B2226/125 ,  B23B2226/18 ,  B24B3/34

    摘要： A cutting insert including a surface involved in cutting, for which a cutting tool material of a hard sintered body is used. A radius of a nose R portion is 0.4 mm or greater and 2.4 mm or less, an apex angle α of the nose R portion is 50° or greater and 95° or less, a rake angle β at a position of a bisecting plane of the apex angle of the nose R portion is 1° or greater and 10° or less, a chamfer provided in a cutting edge portion is a negative land with unequal width, and at least on one side of the negative land with respect to a boundary which is an apex of a nose R portion cutting edge, a width of the negative land gradually decreases from the apex of the nose R portion cutting edge to a position at which the nose R portion cutting edge is connected to a linear cutting edge. Let W1 be the width of the negative land at the apex of the nose R portion cutting edge, and W2 be the width of the negative land at both ends of the nose R portion cutting edge, then the W1 is 0.04 mm or greater and 0.2 mm or less, and a ratio of the W1 1 to the W2 is 1.5 or greater.

    摘要翻译： 本发明提供一种切削镶刀，该切削镶刀具有使用硬质烧结体的切削工具材料进行切削加工的表面。 前端R部的半径为0.4mm以上且2.4mm以下，前端R部的顶角α为50°以上且95°以下，前角R的二等分面的位置处的前角β 前端R部的顶角为1°以上且10°以下，设置于切削刃部的倒角是宽度不等的负台阶，至少在负台阶的一侧相对于边界 其是鼻部R部分切削刃的顶点，负刃带的宽度从鼻部R部分切削刃的顶点逐渐减小至鼻部R部分切削刃连接至线性切削刃的位置。 设W1是在刀尖R部分切削刃的顶点处的负台阶的宽度，并且W2是在刀尖R部分切削刃的两端处的负台阶的宽度，则W1是0.04mm或更大并且0.2 mm以下，并且W1 1与W2的比率为1.5以上。

    CUBIC BORON NITRIDE SINTERED BODY
    10.
    发明公开
    CUBIC BORON NITRIDE SINTERED BODY 审中-公开

    公开(公告)号：EP4001241A1

    公开(公告)日：2022-05-25

    申请号：EP20839852.9

    申请日：2020-07-17

    申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD. ,  Sumitomo Electric Hardmetal Corp.

    发明人： AMEMIYA, Mayu ,  ISHII, Akito ,  OKAMURA, Katsumi ,  MOROGUCHI, Hironari ,  KUKINO, Satoru

    IPC分类号： C04B35/5831 ,  C04B35/5835

    摘要： A cubic boron nitride sintered material includes: more than or equal to 20 volume% and less than or equal to 80 volume% of cubic boron nitride grains; and more than or equal to 20 volume% and less than or equal to 80 volume% of a binder phase, wherein the binder phase includes first binder grains and second binder grains, each of the first binder grains and the second binder grains includes one compound composed of titanium, at least one first metal element selected from a group consisting of zirconium, hafnium, a group 5 element, a group 6 element in a periodic table, and aluminum, and one or both of nitrogen and carbon, in each of the first binder grains, a ratio of the number of atoms of the first metal element to a total of the number of atoms of the titanium and the number of atoms of the first metal element is more than or equal to 0.01% and less than 10%, in each of the second binder grains, this ratio is more than or equal to 10% and less than or equal to 80%, and in an X-ray diffraction spectrum of the cubic boron nitride sintered material, one or both of conditions 1 and 2 are satisfied.