利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

47 条记录 (耗时 0.034 秒)

    Cutting insert
    31.
    发明授权
    Cutting insert 有权

    公开(公告)号：US11033970B2

    公开(公告)日：2021-06-15

    申请号：US16767797

    申请日：2019-10-16

    申请人： SUMITOMO ELECTRIC HARDMETAL CORP.

    发明人： Gaku Harada ,  Satoru Kukino ,  Takashi Harada

    IPC分类号： B23B27/10 ,  B23B27/16

    摘要： A cutting insert includes a bottom surface, a top surface opposite to the bottom surface, and a cutting edge portion. The cutting edge portion is located on the same side as the top surface. The cutting edge portion is formed of a sintered material including cubic boron nitride particles. A volume ratio of the cubic boron nitride particles to the sintered material is more than or equal to 50 percent. The cutting edge portion includes a rake face, a flank face contiguous to the rake face, and a cutting edge located along a ridgeline between the rake face and the flank face. The rake face is inclined toward the bottom surface so that a distance from the rake face to the bottom surface decreases gradually toward the cutting edge.

    Cutting insert and method of manufacturing the same
    36.
    发明授权
    Cutting insert and method of manufacturing the same 有权

    公开(公告)号：US10245644B2

    公开(公告)日：2019-04-02

    申请号：US15036337

    申请日：2015-09-11

    申请人： Sumitomo Electric Industries, Ltd.

    发明人： Satoru Kukino ,  Kentaro Chihara ,  Takashi Harada

    IPC分类号： B23B27/16 ,  B23B27/22 ,  B23B27/14 ,  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 to the W2 is 1.5 or greater.

    Sintered body
    37.
    发明授权
    Sintered body 有权

    公开(公告)号：US10245643B2

    公开(公告)日：2019-04-02

    申请号：US15520948

    申请日：2015-10-14

    申请人： Sumitomo Electric Industries, Ltd.

    发明人： Kentaro Chihara ,  Hironari Moroguchi ,  Takashi Harada ,  Satoru Kukino

    IPC分类号： B23B27/14 ,  C01B21/082 ,  C04B35/626 ,  C04B35/64 ,  C04B35/645 ,  C04B35/5831 ,  C04B35/597 ,  C04B35/628

    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 MxSi(6−x−z)AlzOzN(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.