COATED TOOL
    3.
    发明公开
    COATED TOOL 审中-公开

    公开(公告)号:US20240352572A1

    公开(公告)日:2024-10-24

    申请号:US18682945

    申请日:2022-08-19

    发明人: Tomoya Sasaki

    摘要: A coated tool of the present invention includes a substrate and a hard coating on the substrate. The hard coating is a nitride or a carbonitride containing 65 atom % or more and 90 atom % or less of Al and 10 atom % or more and 35 atom % or less of Cr with respect to a total amount of metal elements including metalloid elements, and containing 0.50 atom % or less of argon (Ar), and has a face-centered cubic lattice structure. The hard coating shows a maximum intensity Ia in an α angle range of 80° to 90° in an X-ray intensity distribution on an α-axis in a positive pole figure of a (111) plane of the face-centered cubic lattice structure, and an intensity in an α angle range of 0° to 70° is 35% or less of the maximum intensity Ia.

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

    公开(公告)号:US20230390829A1

    公开(公告)日:2023-12-07

    申请号:US18033408

    申请日:2022-03-22

    IPC分类号: B23B27/14 C23C28/04

    摘要: A coated cutting tool includes a substrate and a hard coating film. The hard coating film includes a b layer which is disposed on the substrate, a c layer which is a multilayer coating film laminated on the b layer and in which a c1 layer of a nitride or a carbonitride containing Al and Cr and a c2 layer of a nitride or a carbonitride containing Ti and Si are alternately laminated with a film thickness of 50 nm or less, respectively, and a d layer which is disposed on the c layer and is a nitride or a carbonitride of TiSi. The c layer contains 0.10 atomic % or less of Ar with respect to a total amount of a metal (including metalloid) element and a non-metal element.

    Small-diameter drill and small-diameter drill manufacturing method

    公开(公告)号:US11090738B2

    公开(公告)日:2021-08-17

    申请号:US16644662

    申请日:2018-09-07

    IPC分类号: B23B51/02 C23C14/34

    摘要: A small-diameter drill in which is a double margin having a diameter of 2 mm or less and a ratio of a margin length to a diameter of 3 or more, in which the margin length L in an axial direction from an outer peripheral end of a cutting edge to the rear ends of first and second margin parts and a ratio L/D to a diameter D are 3 or more, in which at least a surface of a chip discharge groove is provided with a hard coating made of nitride, in which a surface of the hard coating in the chip discharge groove has skewness (Ssk) defined in ISO25178 of less than 0, and in which the number of droplets having an equivalent circle diameter of 1.0 μm or more is 5 or less per 100 μm2 in cross-section observation of the hard coating.

    COATED CUTTING TOOL
    8.
    发明申请

    公开(公告)号:US20230024595A1

    公开(公告)日:2023-01-26

    申请号:US17787399

    申请日:2020-10-12

    发明人: Tomoya Sasaki

    摘要: Provided is a coated cutting tool in which a surface of a substrate is coated with a hard coating film. The hard coating film includes: a layer (A) disposed on the surface of the substrate, and having a face-centered cubic lattice structure, in which the total content ratio of W and Ti is at least 85 atomic %, and which contains W as the most abundant element and Ti as the next most abundant element among metal (including metalloid) elements; and a layer (B) disposed on the layer (A) and having a face-centered cubic lattice structure, which is composed of nitrides or carbonitrides containing Al, Cr, and Si, and in which, among metal (including metalloid) elements, the Al content ratio is at least 50 atomic %, the total content ratio of Al and Cr is at least 85 atomic %, and the Si content ratio is 4 to 15 atomic %.