公开(公告)号：US10967438B2

公开(公告)日：2021-04-06

申请号：US16523319

申请日：2019-07-26

Applicant: Kennametal Inc.

Inventor： Alan J. Bookheimer ,  Ruy Frota de Souza Filho

IPC: B23B31/20

Abstract: A collet includes an axially rearward end and an axially forward end; a nose portion; a body portion having an outer surface and an inner surface for engaging a shank of a tool; a plurality of slots extending from the inner surface to the outer surface; and a plurality of coolant channels disposed within the collet between the plurality of longitudinally extending slots and extending entirely from the axially rearward end to the axially forward end of the collet. Slots include a first slot extending from the axial forward end to within an intermediary zone, a second slot extending from the axial rearward end to at least the tool holder engagement zone such that the second slot does not intersect the first slot, and a third slot from within the tool engagement zone to within the intermediary zone such that the third slot circumferentially overlaps the first and second slots.

公开(公告)号：US20190009381A1

公开(公告)日：2019-01-10

申请号：US15641728

申请日：2017-07-05

Applicant: Kennametal Inc.

Inventor： Ruy Frota de Souza Filho ,  Alan J. Bookheimer

IPC: B23Q11/10 ,  B23B31/26

Abstract: A clamping unit includes a drawbar having an interior surface defining a fluid transport channel. A fluid transport pipe is at least partially disposed within the interior of the drawbar and is in fluid communication with a fluid transport adapter and a fluid transport channel to enable high pressure fluid to be provided directly to a toolholder. The clamping unit further comprises at least one spring-like member positioned around the outer surface of the drawbar to provide a biasing force against an end plate. The drawbar is movable along a longitudinal axis between a locked position and a tool release position by applying and not applying hydraulic pressure against the end plate, thereby providing a quick-change feature of the invention.

公开(公告)号：US10040127B2

公开(公告)日：2018-08-07

申请号：US14211950

申请日：2014-03-14

Applicant: Kennametal Inc.

Inventor： Ruy Frota de Souza Filho

IPC: B23B29/02 ,  B23P15/28 ,  B23B27/00 ,  C23C24/10

Abstract: A tunable or tuned boring bar having increased stiffness is provided. Increasing the stiffness of the bar increases the natural frequency, thereby reducing directional deformation of the bar during use. The tunable boring bar includes a distal portion configured to support a tool, a proximal portion configured for attachment to a support structure of a metalworking machine, and a body, which is at least partially tubular, extending between the proximal portion and the distal portion. The tubular portion of the body has an elongated cylindrical cavity. The body of the boring bar includes a core layer formed from a first material and a coating layer formed from a second material. The second material has a higher modulus of elasticity than the first material. In certain configurations, the coating layer is bonded to the core layer by cladding, welding, chemical adhesives, chemical vapor deposition, pulsated plasma diffusion, or combinations thereof.

公开(公告)号：US20180169771A1

公开(公告)日：2018-06-21

申请号：US15382120

申请日：2016-12-16

Applicant: Kennametal Inc.

Inventor： Ruy Frota de Souza Filho ,  Nicholas J. Henry

IPC: B23B51/04 ,  B23B51/02

CPC classification number: B23B51/048 ,  B23B51/02 ,  B23B2251/02

Abstract: A rotary cutting tool with a shank and an interchangeable cutting tip, wherein the shank includes a pocket which receives the interchangeable cutting tip via an interference fit. The pocket includes two centering wall portions which, when viewed along a central longitudinal axis, are oriented at a first angle with respect to one another, the first angle being greater than zero. The interchangeable cutting tip is axially displaceable between: an initial position, assumed upon being received in the pocket of the shank; a clamped position, wherein the interchangeable cutting tip is fixedly held with respect to the shank; and a bump-off position, wherein the interchangeable cutting tip is not fixedly held. A holding element holds the interchangeable cutting tip in the clamped position, and a bump-off element displaces the interchangeable cutting tip between the clamped position and the bump-off position. Other variants and embodiments are broadly contemplated herein.

公开(公告)号：US09889509B2

公开(公告)日：2018-02-13

申请号：US14269808

申请日：2014-05-05

Applicant: Kennametal Inc.

Inventor： Leonid B Sharivker ,  Sergei V Boulakhov ,  Christoph Gey ,  Ruy Frota de Souza Filho

IPC: B23C5/10 ,  B23C5/26 ,  B23B31/11

CPC classification number: B23C5/10 ,  B23B31/1115 ,  B23C5/26 ,  B23C2210/02 ,  B23C2210/40 ,  B23C2240/32 ,  B23C2260/28 ,  Y10T407/1908 ,  Y10T407/1946

Abstract: A modular cutter head having a holder defining a threaded receiver. The cutter head can be screwed into the threaded receiver. The cutter can comprise an elongated body portion having a cutting end and cutting edge and an elongated coupling portion spaced from the cutting end, with the coupling portion comprising a core and a plurality of generally helically-extending start threads disposed circumferentially about the core. The cutter head may also include a cutting end having a chip flute and an insert seat.

公开(公告)号：US09586263B2

公开(公告)日：2017-03-07

申请号：US14296785

申请日：2014-06-05

Applicant: Kennametal Inc.

Inventor： Ruy Frota de Souza Filho ,  Calvin L. Hiles

IPC: B23B29/00 ,  B23B27/10 ,  B23B29/12

CPC classification number: B23B27/10 ,  B23B29/12 ,  B23B2250/12 ,  Y10T407/14

Abstract: A tool holder for carrying a cutting insert wherein the cutting insert is useful for the removal of material during a material removal operation. The tool holder includes a tool holder body. The tool holder body includes a pocket adapted to carry the cutting insert, a coolant inlet in communication with a pressurized source of coolant, a coolant chamber having a central region, an upstream coolant passage having a central longitudinal upstream coolant passage axis, and a downstream coolant passage having a central longitudinal downstream coolant passage axis. The upstream coolant passage opens into the coolant chamber. The upstream coolant passage has an orientation relative to the coolant chamber so that the central longitudinal upstream coolant passage axis is offset from the central region of the coolant chamber whereby coolant flows into the coolant chamber in a tangential fashion.

Abstract translation: 一种用于承载切削刀片的刀架，其中切削刀片在材料去除操作期间可用于去除材料。 工具架包括工具夹体。 工具保持器本体包括适于承载切削刀片的凹口，与加压冷却剂源连通的冷却剂入口，具有中心区域的冷却剂腔，具有中心纵向上游冷却剂通道轴线的上游冷却剂通道，以及下游 冷却剂通道具有中央纵向下游冷却剂通道轴线。 上游冷却剂通道通向冷却剂室。 上游冷却剂通道具有相对于冷却剂室的取向，使得中央纵向上游冷却剂通道轴线偏离冷却剂室的中心区域，由此冷却剂以切向方式流入冷却剂室。

公开(公告)号：US09579730B2

公开(公告)日：2017-02-28

申请号：US14319643

申请日：2014-06-30

Applicant: Kennametal Inc.

Inventor： Ruy Frota de Souza Filho

IPC: B23B29/02 ,  B23B27/00

CPC classification number: B23B29/022 ,  B23B27/002 ,  B23B27/007 ,  B23B2250/16 ,  Y10T408/76

Abstract: A tunable or tuned boring tool having a dynamic vibration absorber is provided herein. The boring tool includes a boring bar having a distal portion configured to support a tool, a proximal portion configured for attachment to a support structure of a metalworking machine, and a cylindrical body extending between the proximal portion and the distal portion, having an elongated cavity therein. The boring tool further includes a tuned or tunable absorber inserted in the cavity of the boring bar. The absorber includes an absorber mass, an annular or partially annular support circumscribing each end of the absorber mass for holding the absorber mass within the cavity, and a layer of fluid restricting material surrounding at least a central portion of the absorber mass for dampening vibration of the absorber mass. A method of forming a boring tool with a dynamic vibration absorber is also provided herein.

Abstract translation: 本文提供了一种具有动态吸振器的可调节或调谐钻孔工具。 钻孔工具包括具有被配置为支撑工具的远侧部分的镗杆，被配置为附接到金属加工机的支撑结构的近端部分，以及在近端部分和远端部分之间延伸的圆柱体，具有细长腔 其中。 钻孔工具还包括插入镗杆的空腔中的调谐或可调谐的吸收器。 所述吸收器包括吸收体，环绕或部分环形的支撑件，其围绕所述吸收体的每个端部，以将所述吸收体块保持在所述空腔内;以及一层流体限制材料层，其围绕所述吸收体的至少中心部分以抑制振动 吸收体质量。 本文还提供了一种用动态吸振器形成镗刀的方法。

公开(公告)号：US09468977B2

公开(公告)日：2016-10-18

申请号：US14182855

申请日：2014-02-18

Applicant: Kennametal Inc.

Inventor： Michael R. McCormick ,  Ruy Frota de Souza Filho

IPC: B23B29/04 ,  B23B31/10 ,  B23B31/08 ,  B23B31/107 ,  B24B3/60 ,  B23B29/02

CPC classification number: B23B31/10 ,  B23B29/022 ,  B23B31/08 ,  B23B31/1075 ,  B23B2226/33 ,  B23B2231/04 ,  B23B2250/16 ,  B24B3/60 ,  Y10T279/3406 ,  Y10T408/9098 ,  Y10T408/94 ,  Y10T409/304312 ,  Y10T409/309408 ,  Y10T409/30952 ,  Y10T428/13

Abstract: A process of grinding a pre-ground part wherein the method includes the steps of: providing a pre-ground part containing a bore, and the pre-ground part having an exterior surface with one or more to-be-ground exterior surface regions; positioning a loading tool within the bore of the pre-ground part; exerting a loading tool load on the loading tool which in turn exerts a part load on the pre-ground part; removing material from the one or more to-be-ground surface regions of the pre-ground part when under the part load to form an as-ground part; and unloading the part load from the as-ground part.

Abstract translation: 一种研磨前置部件的方法，其中所述方法包括以下步骤：提供包含孔的预接地部分，并且所述预接地部分具有外表面与一个或多个待对准的外表面区域; 将加载工具定位在预接地部分的孔内; 对装载工具施加装载工具负载，该装载工具又在前置部件上施加部分载荷; 在部分载荷下从预接地部分的一个或多个待地表面区域移除材料以形成地面部分; 并从地面部分卸载部分载荷。

公开(公告)号：US20160107242A1

公开(公告)日：2016-04-21

申请号：US14514826

申请日：2014-10-15

Applicant: Kennametal Inc.

Inventor： Michael R. McCormick ,  Ruy Frota de Souza Filho

IPC: B23B31/08

CPC classification number: B23B31/08 ,  B23B31/107 ,  B23B31/1075 ,  B23B2226/33 ,  B23B2250/16 ,  Y10T408/665 ,  Y10T408/73 ,  Y10T408/76 ,  Y10T408/9098 ,  Y10T408/94 ,  Y10T408/95 ,  Y10T409/304312 ,  Y10T409/309408 ,  Y10T409/30952

Abstract: In one aspect, tool holders employing axial sleeves and dampening elements are described herein. Tool holders described herein define a central longitudinal axis and comprise a tool holder body having a connector portion and a holder portion. The connector portion is structured to engage a rotary machine and the holder portion is disposed opposite the connector portion and has an inner diameter surface comprising a plurality of axial grooves. Tool holders described herein further comprise a tool receiver structured to receive at least a portion of a cutting tool, the tool receiver having an outer diameter surface comprising a plurality of axial grooves. The tool receiver is mounted in the holder portion so as to align the axial grooves of the inner and outer diameter surfaces and define axial sleeves filled with dampening elements.

Abstract translation: 在一个方面，本文描述了采用轴向套筒和阻尼元件的工具夹具。 本文所述的刀座限定了中心纵向轴线并且包括具有连接器部分和保持器部分的刀具保持器主体。 连接器部分构造成接合旋转机器，并且保持器部分设置成与连接器部分相对并且具有包括多个轴向凹槽的内径表面。 本文所述的刀座还包括构造成容纳切削工具的至少一部分的刀具接收器，所述刀具接收器具有包括多个轴向槽的外径表面。 工具接收器安装在保持器部分中，以便对准内径和外径表面的轴向槽，并限定充满阻尼元件的轴向套筒。

公开(公告)号：US20150375304A1

公开(公告)日：2015-12-31

申请号：US14319643

申请日：2014-06-30

Applicant: Kennametal Inc.

Inventor： Ruy Frota de Souza Filho

IPC: B23B29/02

CPC classification number: B23B29/022 ,  B23B27/002 ,  B23B27/007 ,  B23B2250/16 ,  Y10T408/76

Abstract: A tunable or tuned boring tool having a dynamic vibration absorber is provided herein. The boring tool includes a boring bar having a distal portion configured to support a tool, a proximal portion configured for attachment to a support structure of a metalworking machine, and a cylindrical body extending between the proximal portion and the distal portion, having an elongated cavity therein. The boring tool further includes a tuned or tunable absorber inserted in the cavity of the boring bar. The absorber includes an absorber mass, an annular or partially annular support circumscribing each end of the absorber mass for holding the absorber mass within the cavity, and a layer of fluid restricting material surrounding at least a central portion of the absorber mass for dampening vibration of the absorber mass. A method of forming a boring tool with a dynamic vibration absorber is also provided herein.

Abstract translation: 本文提供了一种具有动态吸振器的可调节或调谐钻孔工具。 钻孔工具包括具有被配置为支撑工具的远侧部分的镗杆，被配置为附接到金属加工机的支撑结构的近端部分，以及在近端部分和远端部分之间延伸的圆柱体，其具有细长腔 其中。 钻孔工具还包括插入镗杆的空腔中的调谐或可调谐的吸收器。 所述吸收器包括吸收体，环绕或部分环形的支撑件，其围绕所述吸收体的每个端部，以将所述吸收体块保持在所述空腔内;以及一层流体限制材料层，其围绕所述吸收体的至少中心部分以抑制振动 吸收体质量。 本文还提供了一种用动态吸振器形成镗刀的方法。