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。

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。

公开(公告)号：US20170342831A1

公开(公告)日：2017-11-30

申请号：US15163433

申请日：2016-05-24

Applicant: Kennametal Inc.

Inventor： Luke A. Weber ,  Brandon J. Kenno ,  Nicholas J. Paros

IPC: E21C35/19 ,  E21C25/10 ,  E21C35/183 ,  E01C23/088 ,  E21C35/18

CPC classification number: E21C35/19 ,  E21C35/183 ,  E21C2035/1806 ,  E21C2035/1813 ,  E21C2035/1816

Abstract: A rotatable cutting tool (10) includes a cutting tool body (12) having an axial forward end (14) and an axial rearward end (16). A bolster (46) at least partially received in a head portion (22) and includes a convex-shaped head portion (56) with a socket (20), a collar portion (58) and a tapered shank portion (60). The socket (20) is formed with a substantially planar side wall (20a), a bottom wall (20b), and a radius blend (20c). A hard tip or cutting insert (18) is at least partially received in the socket (20) of the bolster (46) and includes a convex-shaped conical head portion (72), a collar portion (74) and an axially-rearward portion (76) that generally conforms to the geometry of the socket (20) of the bolster (46). Between about sixty percent (60%) and about ninety percent (90%) of the cutting insert (18) is received in the socket (20) of the bolster (46), thereby reducing forces and stresses transmitted to the cutting tool (10) during a machining operation.

公开(公告)号：US09428968B2

公开(公告)日：2016-08-30

申请号：US13871006

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

CPC classification number: E21B10/58

Abstract: A rotary drill bit for engaging an earth strata material includes an elongate drill bit body having an axial forward end and an axial rearward end, and a cutting insert attached to the axial forward end of the elongate drill bit body. The cutting insert has an elongate insert body rotatable about a central axis and includes a pair of symmetrical halves symmetrical about the central axis, each symmetrical half including a leading face, a top surface having a relief surface, a T-land surface extending between the leading face and the relief surface and a cutting edge formed at the intersection of the T-land surface and the relief surface. The cutting edge can have a negative axial rake angle. The relief surface can include a primary relief surface and a secondary relief surface.

Abstract translation: 用于接合地层材料的旋转钻头包括具有轴向前端和轴向后端的细长钻头体，以及附接到细长钻头体的轴向前端的切削刀片。 切削刀片具有可围绕中心轴线旋转的细长插入体，并且包括一对对称的中心轴对称半部，每个对称半部分包括前表面，顶表面具有浮雕表面，T表面在 前表面和浮雕表面以及形成在T-land表面和浮雕表面交叉处的切割刃。 切削刃可以具有负轴向前角。 浮雕表面可以包括主浮雕表面和次级浮雕表面。

公开(公告)号：US20160102550A1

公开(公告)日：2016-04-14

申请号：US14513547

申请日：2014-10-14

Applicant: Kennametal Inc.

Inventor： Nicholas J. Paros ,  Chad A. Swope ,  Donald E. Keller

IPC: E21C35/18

CPC classification number: E21C35/18 ,  E21C35/183 ,  E21C35/197 ,  E21C2035/1803

Abstract: A cutting tool mounting assembly adapted for receiving a cutting tool includes a base having a bottom portion and a front portion that defines a receptacle having an inner wall and a bushing configured for receipt in the receptacle of the base. The bushing includes: a forward face defining an aperture for receiving the cutting tool; a shoulder generally opposite the forward face, the shoulder configured for cooperating with the front portion of the base; and a shank portion extending rearward from the shoulder, the shank portion having an outer surface configured for cooperating with the inner wall of the receptacle. A first elastomeric layer is positioned between the shoulder of the bushing and the front portion of the base and a second elastomeric layer is positioned between the outer surface of the shank portion and the inner wall of the receptacle.

Abstract translation: 适于接收切割工具的切割工具安装组件包括具有底部和底部的基部，该底部限定了具有内壁的插座和被配置为容纳在基座的容座中的衬套。 衬套包括：限定用于接收切割工具的孔的前面; 大致与前表面相对的肩部，所述肩部构造成与所述基部的前部配合; 以及从所述肩部向后延伸的柄部，所述柄部具有被配置为与所述容器的内壁配合的外表面。 第一弹性体层定位在衬套的肩部和基部的前部之间，第二弹性体层定位在柄部分的外表面和容器的内壁之间。

公开(公告)号：US20150015055A1

公开(公告)日：2015-01-15

申请号：US14483587

申请日：2014-09-11

Applicant: Kennametal Inc.

Inventor： Paul A. Bookhamer ,  Nicholas J. Paros ,  Luke A. Weber

IPC: E21C35/18 ,  E21C35/19

CPC classification number: E21C35/19

Abstract: A cutting tool mounting assembly adapted for attachment to a surface of a rotatable driving member of a cutting tool machine, includes: a tool holder having a key shank; a base attached to the surface of the rotatable driving member, the base having a mounting groove for receiving the key shank of the tool holder; a resilient retention structure configured to interact with the base and the tool holder to facilitate a friction fit between the tool holder and the base; and wherein tool holder includes a retention post configured for cooperating with the base for connecting the tool holder to the base. Also included is a dampening element configured between the tool holder and the base for reducing vibration therebetween.

Abstract translation: 一种适于附接到切割工具机的可旋转驱动构件的表面的切割工具安装组件，包括：具有钥匙柄的工具夹具; 基部，其安装在所述可旋转驱动构件的表面上，所述基座具有用于容纳所述工具架的所述键柄的安装槽; 弹性保持结构，其被构造成与所述基座和所述工具保持器相互作用，以便于所述工具架与所述基座之间的摩擦配合; 并且其中工具夹具包括保持柱，所述保持柱构造成用于与所述基座配合以将所述工具架连接到所述基座。 还包括构造在工具架和基座之间以减小它们之间振动的阻尼元件。

公开(公告)号：US20140319897A1

公开(公告)日：2014-10-30

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

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。

公开(公告)号：US20140318871A1

公开(公告)日：2014-10-30

申请号：US13871006

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

CPC classification number: E21B10/58

Abstract: A rotary drill bit for engaging an earth strata material includes an elongate drill bit body having an axial forward end and an axial rearward end, and a cutting insert attached to the axial forward end of the elongate drill bit body. The cutting insert has an elongate insert body rotatable about a central axis and includes a pair of symmetrical halves symmetrical about the central axis, each symmetrical half including a leading face, a top surface having a relief surface, a T-land surface extending between the leading face and the relief surface and a cutting edge formed at the intersection of the T-land surface and the relief surface. The cutting edge can have a negative axial rake angle. The relief surface can include a primary relief surface and a secondary relief surface.

Abstract translation: 用于接合地层材料的旋转钻头包括具有轴向前端和轴向后端的细长钻头体，以及附接到细长钻头体的轴向前端的切削刀片。 切削刀片具有可围绕中心轴线旋转的细长插入体，并且包括一对对称的中心轴对称半部，每个对称半部分包括前表面，顶表面具有浮雕表面，T表面在 前表面和浮雕表面以及形成在T-land表面和浮雕表面交叉处的切割刃。 切削刃可以具有负轴向前角。 浮雕表面可以包括主浮雕表面和次级浮雕表面。

公开(公告)号：US10294786B2

公开(公告)日：2019-05-21

申请号：US15163433

申请日：2016-05-24

Applicant: Kennametal Inc.

Inventor： Luke A. Weber ,  Brandon J. Kenno ,  Nicholas J. Paros

IPC: E21C35/183 ,  E21C35/19 ,  E21C35/18

Abstract: A rotatable cutting tool (10) includes a cutting tool body (12) having an axial forward end (14) and an axial rearward end (16). A bolster (46) at least partially received in a head portion (22) and includes a convex-shaped head portion (56) with a socket (20), a collar portion (58) and a tapered shank portion (60). The socket (20) is formed with a substantially planar side wall (20a), a bottom wall (20b), and a radius blend (20c). A hard tip or cutting insert (18) is at least partially received in the socket (20) of the bolster (46) and includes a convex-shaped conical head portion (72), a collar portion (74) and an axially-rearward portion (76) that generally conforms to the geometry of the socket (20) of the bolster (46). Between about sixty percent (60%) and about ninety percent (90%) of the cutting insert (18) is received in the socket (20) of the bolster (46), thereby reducing forces and stresses transmitted to the cutting tool (10) during a machining operation.

公开(公告)号：USD839936S1

公开(公告)日：2019-02-05

申请号：US29565804

申请日：2016-05-24

Applicant: Kennametal Inc.

Designer： Luke A. Weber ,  Brandon J. Kenno ,  Nicholas J. Paros