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    Rotary cutting tool with high ramp angle capability
    11.
    发明授权
    Rotary cutting tool with high ramp angle capability 有权

    公开(公告)号：US11865629B2

    公开(公告)日：2024-01-09

    申请号：US17519267

    申请日：2021-11-04

    Applicant: Kennametal Inc.

    Inventor： Leonid B. Sharivker ,  Sergei Boulakhov ,  Stephen M. George ,  John Boyea

    IPC: B23C5/10

    CPC classification number: B23C5/10 ,  B23C2210/04

    Abstract: A rotary cutting tool includes a shank portion, a cutting portion, and a cutting tip. The cutting portion includes a plurality of blades and a plurality of flutes. Each blade includes a leading face, a trailing face, and a land surface extending between the leading face and the trailing face. The cutting end includes an end cutting edge having a first end face cutting edge portion formed with a positive, neutral or negative radial angle, a positive dish angle and a negative axial rake angle, and second end face cutting edge portion formed with a highly positive radial angle, a positive dish angle and a negative axial rake angle. The highly positive radial angle of the second end face cutting edge portion enables the rotary cutting tool to perform a ramp operation at very large ramp angles of between about 15-45 degrees.

    Two prong rotary drill bit with cutting insert having edge preparation
    13.
    发明授权
    Two prong rotary drill bit with cutting insert having edge preparation 有权
    带切削刀片的双尖头旋转钻头具有边缘准备

    公开(公告)号：US09347276B2

    公开(公告)日：2016-05-24

    申请号：US13871009

    申请日：2013-04-26

    Applicant: Kennametal Inc.

    Inventor： Nicholas J. Paros ,  Stephen M. George ,  Glenn W. Sheffler ,  Don C. Rowlett

    IPC: E21B10/58 ,  E21B10/42

    CPC classification number: E21B10/58 ,  E21B10/42

    Abstract: A two-prong rotary drill bit for engaging an earth strata material includes a drill bit body having an axis of rotation, the drill bit body having a head portion at an axial forward end and a shank portion at an axial rearward end, the head portion having two mounting arms offset from the axis of rotation of the drill bit body. The two-prong rotary drill bit also includes a cutting insert attached to each mounting arm at the axial forward end of the drill bit body. Each cutting insert includes a leading face facing in the direction of rotation, a top surface having a relief surface, a T-land surface extending between the leading face and the relief surface of the top surface and a cutting edge formed at the intersection of the T-land surface and the relief surface of the top surface.

    Abstract translation: 用于接合地层材料的双头旋转钻头包括具有旋转轴线的钻头体，所述钻头体在轴向前端具有头部，在轴向后端具有柄部，所述头部 具有从钻头体的旋转轴线偏离的两个安装臂。 双头旋转钻头还包括在钻头体的轴向前端附接到每个安装臂的切削刀片。 每个切削刀片包括面向旋转方向的前表面，具有浮雕表面的顶表面，在前表面和顶表面的浮雕表面之间延伸的T形表面表面和形成在该顶表面的交叉点处的切割刃 T表面和顶面的浮雕表面。

    Flat cutter bit with cutting insert having edge preparation
    14.
    发明授权
    Flat cutter bit with cutting insert having edge preparation 有权
    带切削刀片的平刀头具有边缘准备

    公开(公告)号：US09303511B2

    公开(公告)日：2016-04-05

    申请号：US13871023

    申请日：2013-04-26

    Applicant: Kennametal Inc.

    Inventor： Nicholas J. Paros ,  Stephen M. George ,  Glenn W. Sheffler ,  Don C. Rowlett

    IPC: E21C35/183 ,  E21B10/58 ,  E21C35/18

    CPC classification number: E21C35/183 ,  E21B10/58 ,  E21C2035/1816

    Abstract: A flat cutter bit for engaging an earth strata material includes a non-rotatable shank portion, a head portion integrally formed with the non-rotatable shank portion and including a tip region distal from the non-rotatable shank portion, and a cutting insert mounted at the tip region of the head portion. The cutting insert includes a body having an angled leading face, a top surface having a relief surface, a T-land surface extending between the angled leading face and the relief surface of the top surface and a cutting edge formed at the intersection of the T-land surface and the relief surface of the top surface.

    Abstract translation: 用于接合地层材料的扁平铣刀头包括不可旋转的柄部分，与不可旋转柄部一体形成的头部，并且包括远离不可旋转柄部的尖端区域，以及安装在 头部的尖端区域。 所述切削刀片包括具有成角度的前表面的主体，具有浮雕表面的顶表面，在所述倾斜的前表面和所述顶表面的所述浮雕表面之间延伸的T形表面，以及形成在所述T 地面和顶面的浮雕表面。

    COUPLING MECHANISM FOR CUTTING TOOL
    15.
    发明申请
    COUPLING MECHANISM FOR CUTTING TOOL 审中-公开
    切割工具联轴器机构

    公开(公告)号：US20150030399A1

    公开(公告)日：2015-01-29

    申请号：US14273456

    申请日：2014-05-08

    Applicant: Kennametal Inc.

    Inventor： Ruy Frota de Souza ,  Leonid B. Sharivker ,  Sergei Boulakhov ,  Christoph Gey ,  Yosi Harush ,  Alan Bookheimer ,  Uzi Levy ,  Stephen M. George

    IPC: B23C5/10 ,  B23B51/00

    CPC classification number: B23C5/10 ,  B23B31/11 ,  B23B51/00 ,  B23B2251/02 ,  B23C5/109 ,  B23C2210/02 ,  B23C2210/03 ,  B23C2240/32 ,  F16B39/30 ,  Y10T407/1906 ,  Y10T408/907 ,  Y10T408/9098

    Abstract: A rotary cutting tool including a cutter member having an axial forward end and an axial rearward end. A cutting region is at the axial forward end of the cutter member, and a male threaded portion is adjacent the axial rearward end of the cutter member. A shank member has an axial forward end and a shank bore opening at the axial forward end. The shank bore has an axial shank bore length. The shank bore contains a female threaded portion and an axial rearward shank bore portion axially rearward of the female threaded portion. The axial rearward shank bore portion has a terminal end. When the male threaded portion of the cutter member fully engages the female threaded portion of the shank member, the axial rearward end of the cutter member being spaced a first distance axially forward of the terminal end of the axial rearward shank bore portion.

    Abstract translation: 一种旋转切削工具，其包括具有轴向前端和轴向后端的切割构件。 切割区域位于切割器构件的轴向前端，并且外螺纹部分邻近切割器构件的轴向后端。 杆构件在轴向前端具有轴向前端和柄孔开口。 柄孔具有轴向轴孔长度。 柄孔包括内螺纹部分和在内螺纹部分的轴向后方的轴向后柄孔部分。 轴向后柄孔部分具有终端。 当刀具构件的外螺纹部分完全接合柄构件的内螺纹部分时，刀具构件的轴向后端在轴向后柄孔部分的终端的轴向前方间隔开第一距离。

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