MODULAR ROTARY CUTTING TOOLS
    1.
    发明公开

    公开(公告)号:US20240307978A1

    公开(公告)日:2024-09-19

    申请号:US18120943

    申请日:2023-03-13

    申请人: Kennametal Inc.

    IPC分类号: B23B51/00 B23B27/16

    CPC分类号: B23B51/0007 B23B27/1611

    摘要: Rotary cutting tools are disclosed comprising shanks and replaceable cutting inserts are provided. The shank comprises a pocket which receives an interchangeable cutting insert. The pocket includes a floor with a central pin-receiving hole, opposing pocket centering walls, and torque transmitting pocket drive walls. The cutting insert has a relatively long rear pin receivable in the central hole of the shank. A head of the cutting insert includes insert centering surfaces that contact the pocket centering walls of the shank, and insert drive surfaces that contact the torque transmitting pocket drive walls of the shank. The configurations and sizes of the shank and cutting insert features are controlled to provide improved torque transmission, rigidity and stability during operation of the rotary cutting tools.

    Cutting insert
    2.
    外观设计

    公开(公告)号:USD1042566S1

    公开(公告)日:2024-09-17

    申请号:US29821682

    申请日:2021-12-31

    申请人: Kennametal Inc.

    摘要: FIG. 1 is a top perspective view of the cutting insert showing our new design;
    FIG. 2 is a bottom perspective view thereof;
    FIG. 3 is a top view thereof;
    FIG. 4 is a bottom view thereof; and,
    FIG. 5 is a front view thereof, with left side, right side, and rear views being identical to the front view.
    The cutting insert is rotationally symmetrical 90 degrees around a central axis thereof.
    The broken lines depict portions of the cutting insert in which the design is embodied and form no part of the claimed design.

    MODULAR DRILL WITH CLAMPING FINGERS
    5.
    发明公开

    公开(公告)号:US20240261870A1

    公开(公告)日:2024-08-08

    申请号:US18104911

    申请日:2023-02-02

    申请人: Kennametal Inc.

    IPC分类号: B23B27/16 B23B51/00

    CPC分类号: B23B27/1666 B23B51/0003

    摘要: A modular drill includes an insert and a main body. The insert has a working end and a retention end. The retention end includes a retention bit. The main body has an attachment end for attachment to a toolholder and a receiving end defining an insert pocket. There is at least one clamping finger disposed in the pocket. The insert is disposed in the insert pocket with the retention bit held in tension with the clamping fingers.

    METHODS OF MAKING CEMENTED CARBIDE POWDERS FOR ADDITIVE MANUFACTURING

    公开(公告)号:US20240253115A1

    公开(公告)日:2024-08-01

    申请号:US18583538

    申请日:2024-02-21

    申请人: Kennametal Inc.

    摘要: Sintered cemented carbide powder compositions for use in the production of various articles by additive manufacturing are described. The individual particles of the powder compositions comprise metal carbide particles sintered together with a metallic binder. The sintered cemented carbide particles comprise a monomodal particle size distribution in which the sintered cemented carbide particles have a D50 of greater than 12 μm and a D10 of greater than 5 μm. The metallic binder may be present in an amount of from 9 to 11 weight percent based on total weight of the sintered cemented carbide particles. Sintered cemented carbide bodies comprising the described sintered cemented carbide powder compositions are also described. Methods of making the sintered cemented carbide powder compositions, and methods of making the sintered cemented carbide bodies are also described.

    Modular boring head with fine adjustment click mechanism

    公开(公告)号:US11998995B2

    公开(公告)日:2024-06-04

    申请号:US17696975

    申请日:2022-03-17

    申请人: Kennametal Inc.

    IPC分类号: B23B29/034

    CPC分类号: B23B29/03403 B23B29/03425

    摘要: A modular boring head includes a tubular main body having an internal thread with a first pitch and a pair of axially extending cantilevered members. A movable rod engages the tubular main body such that the movable rod is movable with respect to the tubular main body in an axial direction, D. The movable rod has an internal thread with a second pitch different than the first pitch. A leadscrew is disposed within the tubular main body and has a plurality of gear teeth. Rotation of the leadscrew causes the pair of axially extending cantilevered members of the tubular main body to cooperatively engage with the plurality of gear teeth of the leadscrew in such a manner so as to produce an audible and tactile click, each click being indicative of a distance the movable rod is displaced with respect to the tubular main body.