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    CUTTING INSERT AND CUTTING TOOL
    3.
    发明公开
    CUTTING INSERT AND CUTTING TOOL 审中-公开

    公开(公告)号：EP4438210A1

    公开(公告)日：2024-10-02

    申请号：EP22898601.4

    申请日：2022-11-24

    申请人： Mitsubishi Materials Corporation

    发明人： KITAJIMA, Jun ,  NOMIYAMA, Yu ,  WATANABE, Rikuki ,  KAGOTA, Mahiro

    IPC分类号： B23C5/20 ,  B23B27/16 ,  B23C5/10

    CPC分类号： B23C5/10 ,  B23C5/20 ,  B23B27/16

    摘要： This cutting insert (1) is a plate-shaped cutting insert (1) having a center line (O), and includes an upper surface (2) that forms one surface of two surfaces facing each other in an axial direction along the center line (O); a lower surface (3) that forms the other surface of the two surfaces facing each other; a side surface (4) that connects the upper surface (2) and the lower surface (3) in the axial direction; and a mounting hole (6) that passes through the cutting insert in the axial direction, in which the side surface (4) extends obliquely inward in a radial direction perpendicular to the center line (O) from the upper surface (2) toward the lower surface (3) in the axial direction, the lower surface (3) includes a seating surface (3a) having a flat surface perpendicular to the center line (O), and a pedestal (3b) having a protruding portion protruding from an outer peripheral edge of the seating surface (3a) in a direction away from the upper surface (2) in the axial direction beyond the seating surface (3a), and a top portion (3bc) of the protruding portion of the pedestal (3b) is perpendicular to the center line (O).

    DOUBLE-SIDED CUTTING INSERT AND HELICAL MILLING CUTTER
    4.
    发明公开
    DOUBLE-SIDED CUTTING INSERT AND HELICAL MILLING CUTTER 审中-公开

    公开(公告)号：EP4438209A1

    公开(公告)日：2024-10-02

    申请号：EP23315066.3

    申请日：2023-03-28

    申请人： Seco Tools AB

    发明人： Vincent, Mathieu ,  Bonenfant, Antoine ,  Auzenat, François ,  Delorme, Anthony

    IPC分类号： B23C5/10 ,  B23C5/22

    CPC分类号： B23C5/109 ,  B23C5/2213 ,  B23C2200/3220130101 ,  B23C2200/049420130101 ,  B23C2200/20520130101

    摘要： A double-sided cutting insert (1) for use in a helical milling cutter with rectangular basic shape and four different working positions. A peripheral surface (10) extends around the cutting insert between two major faces (2, 3) and has two longer main side faces (11, 12) and two shorter main side faces (13, 14). A main cutting edge (31-34) is formed at an intersection between each longer main side face (11, 12) and each major face (2, 3). An inclined chip guiding surface (41-44) extends between each shorter main side face (13, 14) and each major face (2, 3). Each chip guiding surface intersects an abutment surface (5a, 5b) of the adjacent major face on both sides of a longitudinal centre plane of the cutting insert. The invention also relates to a helical milling cutter comprising a plurality of such cutting inserts.

    CUTTING INSERT, CUTTING TOOL, AND METHOD FOR MANUFACTURING CUT PRODUCT
    5.
    发明公开
    CUTTING INSERT, CUTTING TOOL, AND METHOD FOR MANUFACTURING CUT PRODUCT 审中-实审

    公开(公告)号：EP4417350A1

    公开(公告)日：2024-08-21

    申请号：EP22880880.4

    申请日：2022-10-05

    申请人： Kyocera Corporation

    发明人： YAMAMICHI, Kazuki ,  IWASAKI, Kento

    IPC分类号： B23C5/20 ,  B23C5/10

    CPC分类号： B23C5/10 ,  B23C5/20

    摘要： A first lateral surface of a cutting insert in a non-limiting embodiment of the present disclosure includes a first region, a second region, and a third region. The first region includes a first upper region inclined outward, and a first lower region that is connected to the first upper region and is parallel to a central axis. The second region includes a second upper region inclined inward, and a second lower region that is located closer to a lower surface than the second upper region and is parallel to the central axis. The third region includes a third upper region inclined outward, a third lower region, and a concave part. The third lower region is located closer to the lower surface than the third upper region, and is located more outside than the third upper region and is parallel to the central axis. The concave part is located between the third upper region and the third lower region.