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280 条记录 (耗时 0.021 秒)

    DIAMOND COATED TOOL
    104.
    发明公开
    DIAMOND COATED TOOL 审中-公开

    公开(公告)号：US20240091863A1

    公开(公告)日：2024-03-21

    申请号：US17768511

    申请日：2020-10-09

    申请人： SUMITOMO ELECTRIC HARDMETAL CORP.

    发明人： Rintaro SUGIMOTO ,  Takashi HARADA ,  Satoru KUKINO

    IPC分类号： B23B27/20 ,  C23C16/27

    CPC分类号： B23B27/20 ,  C23C16/27

    摘要： A diamond coated tool includes a base material and a diamond layer provided on the base material. The diamond layer has a boron content of 1×103 ppma or more and 1×106 ppma or less and an oxygen content of 1×102 ppma or more and 1×105 ppma or less in a first region surrounded by a surface of the diamond layer and a first imaginary plane located at a distance of 1 μm from the surface in a thickness direction.

    DIAMOND TOOL
    105.
    发明申请
    DIAMOND TOOL 有权

    公开(公告)号：US20220355388A1

    公开(公告)日：2022-11-10

    申请号：US17634981

    申请日：2020-12-04

    申请人： SUMITOMO ELECTRIC HARDMETAL CORP.

    发明人： Takashi HARADA ,  Satoru KUKINO ,  Naoki WATANOBE

    IPC分类号： B23B27/20 ,  B23C5/16

    摘要： A diamond tool includes a diamond at least on a cutting edge including one or two or more diamond grains including a diamond phase composed of a diamond crystal structure and a graphite phase composed of a graphite crystal structure. When a ratio Iπ*/Iσ* between an intensity of a π* peak derived from a π bond of carbon in the graphite phase and an intensity of a σ* peak derived from a σ bond of carbon in the graphite phase and a σ bond of carbon in the diamond phase is determined for the diamond grain by measuring an energy loss associated with excitation of K-shell electrons of carbon by electron energy loss spectroscopy, the ratio Iπ*/Iσ* of the diamond grain on a surface of the cutting edge is 0.1 to 2 and a ratio Iπ*/Iσ* of the diamond grain at a depth position of 0.5 μm from the surface of the cutting edge is 0.001 to 0.1.

    Throwaway insert
    106.
    发明授权
    Throwaway insert 有权

    公开(公告)号：US11458546B2

    公开(公告)日：2022-10-04

    申请号：US16470138

    申请日：2017-02-02

    申请人： SUMITOMO ELECTRIC SINTERED ALLOY, LTD.

    发明人： Kazuo Maeda

    IPC分类号： B23B27/14 ,  B23B27/20

    摘要： The throwaway insert includes a base and a cutting edge member. The cutting edge member includes a rake face, a flank face, a first connecting face, a second connecting face, and a first ridgeline serving as a cutting edge. The rake face includes a main surface and a first chamfer provided at an edge tip portion of the cutting edge member, the edge tip portion including an extreme tip portion of the cutting edge member. In a plan view from an upper surface of the base, the flank face, the first connecting face, and the second connecting face are located external to the base. The first chamfer is inclined relative to the main surface so as to increase a thickness of the cutting edge member as the first chamfer is closer to the main surface.

    DIAMOND CUTTING TOOL
    107.
    发明申请
    DIAMOND CUTTING TOOL 有权

    公开(公告)号：US20220297201A1

    公开(公告)日：2022-09-22

    申请号：US17642196

    申请日：2020-08-18

    申请人： SUMITOMO ELECTRIC HARDMETAL CORP.

    发明人： Akihiko UEDA ,  Mayuka SEGAWA ,  Rintaro SUGIMOTO ,  Machiko ABE ,  Takashi HARADA ,  Satoru KUKINO

    IPC分类号： B23B27/20 ,  B23B51/00

    摘要： A diamond cutting tool comprises a base metal part and a diamond part joined to the base metal part, wherein the base metal part is made of an alloy containing tungsten carbide, the diamond part configures at least a cutting blade, the cutting blade comprises a portion of a rake face, a portion of a flank face, and a ridge line at which the rake face and the flank face cross, the diamond cutting tool has a region A, the region A is a region that is present bridging over the three, which are the rake face, the ridge line, and the flank face on the surface of the cutting blade, and the region A has a surface roughness Ra of not more than 0.2 μm and a concentration of tungsten element of not more than 1 mass %.

    Sintered material and method of producing same
    109.
    发明授权
    Sintered material and method of producing same 有权

    公开(公告)号：US11192826B2

    公开(公告)日：2021-12-07

    申请号：US16609369

    申请日：2018-02-15

    申请人： Sumitomo Electric Industries, Ltd.

    发明人： Akito Ishii ,  Katsumi Okamura

    IPC分类号： C04B35/5831 ,  B23B27/20 ,  C04B35/628 ,  C04B35/63 ,  C04B35/645

    摘要： A sintered material includes a first phase and a second phase, wherein the first phase is composed of cubic boron nitride particles, and the following relational expressions are satisfied when more than or equal to two cubic boron nitride particles adjacent to and in direct contact with each other among the cubic boron nitride particles are defined as a contact body, Di represents a length of an entire perimeter of the contact body, n represents the number of contact locations at which the cubic boron nitride particles are in direct contact with each other, dk represents a length of each of the contact locations, and Σdk (where k=1 to n) represents a total length of the contact locations: Dii=Di+(2×Σdk (where k=1 to n)); and [(Dii−Di)/Dii]×100≤50.