Conducting Channel Extending To End Of Tool Patents (Class 408/59)
  • Patent number: 10617430
    Abstract: A surgical bur with a head that defined a single flute. The flute has a rake surface with a cutting edge and an opposed recess edge. The cutting edge is spaced further from axis of shaft of the bur than the recess edge. The rake surface is often, but not always, planar.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: April 14, 2020
    Assignee: Stryker European Holdings I, LLC
    Inventors: Denis O'Sullivan, Sinéad Hughes
  • Patent number: 10532416
    Abstract: A machining tool for deburring boreholes, which lead laterally into a recess, comprising: a shaft; a cutting head with at least one circumferential cutting blade associated with a chip groove and having a cutting edge extending, at least in sections, in an axial direction, and which can perform a cutting process by virtue of relative movement between the tool and a workpiece, and which lies on a virtual cylindrical rotation surface; and at least one cutting-blade-free and chip-groove-free surface area; at least one fluid channel closed on the cutting head side, extending through the shaft into the cutting head; and at least one branch channel with an outlet opening. The outlet opening is in a dynamic pressure active surface radially set back relative to the virtual rotation surface, and is larger than a flow cross-sectional area of the at least one branch channel at the outlet opening.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: January 14, 2020
    Assignee: Guehring KG
    Inventor: Gerhard Schanz
  • Patent number: 10486238
    Abstract: A cutting tool comprises: a plate member which is provided, at a leading end thereof, edge parts; a support member which supports the plate member so as to cause the edge parts to be projected; and a coolant supply part which has an ejection port and which ejects, from the ejection port, fluid that cools the edge parts. The support member has a non-contact surface which forms a gap with respect to an outer side surface of the plate member. The gap is opened toward a side where the edge parts are provided. The ejection port is arranged in the gap, and the ejection port ejects the fluid toward the plate member.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: November 26, 2019
    Assignee: TUNGALOY CORPORATION
    Inventor: Yasutake Sasaki
  • Patent number: 10442012
    Abstract: A machining tool (1) comprises a clamping section (2), which extends along a central axis (M), a cutting section (3), which adjoins the clamping section (2) and has a nominal diameter (DN), and at least one cooling duct (4), which preferably extends in the clamping section (2) and in the cutting section (3), wherein the cross-sectional shape of the cooling duct (4) is arranged in a cross-sectional region (Q) of the respective section (2, 3) in which the equivalent stress under a machining load has a value which is as small as possible, and/or wherein the cross-sectional shape of the cooling duct (4) is defined by an inner curve segment (5), an outer curve segment (6), which is arranged at a distance from the latter, and by means of two tangents (7) connecting the two curve segments (5, 6).
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: October 15, 2019
    Assignee: Mikron Tool SA Agno
    Inventors: Mattia Genini, Alberto Gotti, Markus Schnyder
  • Patent number: 10328536
    Abstract: A rotary cutting tool with an elongate body disposed about a longitudinal axis, the elongate body including a helical flute and a polycrystalline-diamond cutting tip. The cutting tip comprises an inner portion having an inner point angle and an outer portion having an outer point angle different from the inner point angle.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: June 25, 2019
    Assignee: KENNAMETAL INC.
    Inventors: Karthik Sampath, Armin Zimmerman, Steve George
  • Patent number: 10124416
    Abstract: A drill bit having an interior canal for liquid nitrogen to pass longitudinally through the body of the drill bit. The canal has, on the side of a cutting edge of the drill bit, at least one liquid nitrogen ejection duct that opens near the cutting edge which is formed by an insert made with polycrystalline diamond fixed to the body of the drill bit. A device for drilling a metal-composite stack includes the drill bit, a liquid nitrogen production unit and a distribution network to distribute the liquid nitrogen. The device drills through a metal-composite stack in a single pass of the drill bit. The liquid nitrogen at cryogenic temperature is conveyed close to the cutting edge, at least while the cutting edge is in contact with the metallic material.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: November 13, 2018
    Assignee: Airbus SAS
    Inventors: Daniel Aliaga, Dominique Schuster, Fernand Vinhas, Guillaume Abrivard
  • Patent number: 10070870
    Abstract: A medical drill bit comprises an accommodating slot disposed concavely on a main body of the medical drill bit, a separate board disposed in the accommodating slot to separate the accommodating slot into a first slot and a second slot, and a lid engaging with the separate board and covering the accommodating slot. The lid and the separate board do not rotate with the main body when the main body in rotation. The accommodating uses to fill with cooling liquid which able to be pumped out from the accommodating slot, and fresh cooling liquid is able to inject into the accommodating slot for cooling the drill bit in rotation.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: September 11, 2018
    Assignee: NATIONAL PINGTUNG UNIVERSITY OF SCIENCE & TECHNOLOGY
    Inventors: Wei-Hua Lu, Yung-Chuan Chen
  • Patent number: 10058965
    Abstract: A tool holder has a main body and a holding pin onto which a rotary tool having a corresponding holding bore can be placed. At least one channel for transporting coolant or lubricant, the channel leading to the outer circumference of the holding pin, is arranged in the tool holder. In order to enable cooling of the cutting edges of the rotary tool without great production complexity, at least one longitudinal groove for conducting the coolant or lubricant in a longitudinal direction of the holding pin is arranged on the outer circumference of the holding pin.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: August 28, 2018
    Assignee: FRANZ HAIMER MASCHINENBAU KG
    Inventor: Franz Haimer
  • Patent number: 9975186
    Abstract: A drilling head for a tubular shank having an inside diameter and threads may comprise an axial body comprising a duct exiting through a first end; threads adjacent the first end corresponding to the threads on the shank and aligning the duct with the shank inside diameter; a bore from an outer surface of the body to the duct; and two axially extending approximately parallel and offset surfaces adjacent a second end; and an insert affixed between the offset surfaces, the insert comprising: a first face at least partially contacting one offset surface and a second face at least partially contacting the other offset surface; one or more cutting edges adjacent the first face, the second face, or both; and a cutting lip adjacent one or more cutting edges.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: May 22, 2018
    Assignee: ALLIED MACHINE & ENGINEERING CORPORATION
    Inventors: David A. Lutz, James R. Porter, Chad M. Lynch
  • Patent number: 9975185
    Abstract: A tip for twist drill, comprising a super-hard structure joined to a substrate at an interface boundary coterminous with an end of the substrate, the super-hard structure comprising sintered polycrystalline material comprising super-hard grains, the super-hard structure defining a super-hard end surface opposite the interface boundary and a plurality of cutting edges configured for boring into a body in use; the super-hard end surface including a center point or chisel edge, and comprising a plurality of surface regions configured such that respective planes tangential to each of the surface regions are disposed at substantially different angles from the axis of rotation of the tip in use. Precursor constructions for use in manufacturing the tips as well as methods for making the precursor constructions and the tips are disclosed.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: May 22, 2018
    Assignees: Element Sux Abrasives S.A., Element Six Limited
    Inventors: Maweja Kasonde, Robert Fries, John James Barry, Cornelis Roelof Jonker
  • Patent number: 9700944
    Abstract: A tool head for use with a modular shank tool includes at least two preforms. Each preform of the at least two performs is made separately from the other preform of the at least two preforms from granular materials and then put together and jointly compressed and integrally bonded.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: July 11, 2017
    Assignee: KENNAMETAL INC.
    Inventors: Christoph Gey, Juergen Schwaegerl
  • Patent number: 9623490
    Abstract: A three-flute drill having: a tool main body with cutting edges at an axially distal end thereof, a flute portion having discharge flutes in a distal-end side portion of the body, and a cutting fluid supply hole for supplying fluid toward the edges, a rear inner wall surface on the radial direction on a rear side in the drill rotation direction and opposed to the front inner wall surface in a drill circumferential direction, an outer circumferential inner wall surface made up of a partially cylindrical surface whose center lies on an axis of the drill, and an inner circumferential inner wall surface having a partially cylindrical surface whose center lies on the drill axis and opposed to the outer circumferential inner wall surface in the radial direction, the inner circumferential inner wall having a curvature radius smaller than that of the outer circumferential inner wall surface.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: April 18, 2017
    Assignee: OSG CORPORATION
    Inventor: Kazuteru Takai
  • Patent number: 9604286
    Abstract: A drill with a cutting fluid supply hole includes: a tool main-body with an axial end cutting-edge, a portion having a discharge flute on a main-body distal end side portion, and a cutting fluid supply hole, the hole having a fan-shaped cross section defined by a front inner-wall surface located along a main-body radial direction on the front side in the drill rotation direction, a rear inner-wall surface located along the radial-direction on the rear side in the drill rotation direction and facing the front inner-wall surface in a main-body circumferential direction, an outer circumferential inner-wall surface made up of a partially cylindrical surface around a drill center line, and an inner circumferential inner-wall surface made up of a partially cylindrical surface around the center line with a curvature radius smaller than that of the outer circumferential inner-wall surface and facing the outer circumferential inner-wall surface in the radial direction.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: March 28, 2017
    Assignee: OSG CORPORATION
    Inventor: Kazuteru Takai
  • Patent number: 9579158
    Abstract: Surgical instrument (1) comprising a longitudinal shaft (2) with a tip portion (3), a rear portion (4) and a longitudinal axis (5) and rotatable in the clock-wise and in the counter-clockwise direction around the longitudinal axis (5), said surgical instrument (1) further comprising: A) first means (6) for drilling a hole in a bone by rotation of the shaft (2) in one of the two directions; B) second means (7) for crushing bone tissue when the shaft (2) rotates in the other of the two directions; and C) a torque sensor (10) coupled to the shaft (2).
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: February 28, 2017
    Assignee: AO Technology AG
    Inventors: Stefano Brianza, Ronald Schwyn
  • Patent number: 9579108
    Abstract: A surgical drill bit can include a body portion that defines a central axis that extends along a first direction. The body portion can be separated along the first direction into a distal cutting segment, and a guiding segment. The body portion can include a helical flute that winds about the central axis. The helical flute can define a first outer profile along the cutting segment and a second outer profile along the guiding segment, the first outer profile has a first leading edge and a first bearing surface and the second outer profile has a second leading edge and a second bearing surface. The first leading edge can be configured to cut into bone and can be spaced from the central axis by a first length. The second leading edge can be spaced from the central axis by a second length that is less than the first length.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: February 28, 2017
    Assignee: DePuy Synthes Products, Inc.
    Inventor: Robert J Schoutens
  • Patent number: 9561550
    Abstract: A drilling head for a tubular shank having an inside diameter and threads may comprise an axial body comprising a duct exiting through a first end; threads adjacent the first end corresponding to the threads on the shank and aligning the duct with the shank inside diameter; a bore from an outer surface of the body to the duct; and two axially extending approximately parallel and offset surfaces adjacent a second end; and an insert affixed between the offset surfaces, the insert comprising: a first face at least partially contacting one offset surface and a second face at least partially contacting the other offset surface; one or more cutting edges adjacent the first face, the second face, or both; and a cutting lip adjacent one or more cutting edges.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: February 7, 2017
    Assignee: ALLIED MACHINE & ENGINEERING CORP.
    Inventors: David A. Lutz, James R. Porter, Chad M. Lynch
  • Patent number: 9555515
    Abstract: In a machine tool spindle device, a draw bar is arranged inside a center hole of a spindle, and a disc spring is arranged inside a spring member arrangement space between the draw bar and the center hole. A draw bar inner pipe is inserted inside a through hole of the draw bar, and the interior of the draw bar inner pipe is used as a coolant passage. A gap between the draw bar inner pipe and the through hole is used as an air passage for supplying the purge air, and the interior of the spring member arrangement space is used as a coolant supply passage for supplying coolant to cooling jackets of the spindle.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: January 31, 2017
    Assignee: DMG MORI CO., LTD.
    Inventors: Akihiro Mochizuki, Syunsuke Nakazawa
  • Patent number: 9302332
    Abstract: A twist drill assembly (10) comprising a shaft (30) and a drill tip (20); the shaft having a single internal shaft conduit (34) for a fluid, extending between orifices (36, 37) formed into the shaft; the drill tip having an internal drill tip conduit (22) for the fluid, extending between orifices formed into the drill tip; the shaft and the drill tip configured such that the drill tip is connectable to an end of the shaft with the internal drill tip conduit in communication with the internal shaft conduit, allowing the fluid to be capable of flowing from the internal shaft conduit into the internal drill tip conduit; the internal shaft conduit having a spiral form aligned with a central longitudinal axis of the shaft, and configured to complement the arrangement of spiral flutes (38) formed on the shaft.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: April 5, 2016
    Assignee: Element Six Limited
    Inventors: Terry Scanlon, John James Barry, James Doyle
  • Patent number: 9162335
    Abstract: An apparatus and method for machining is provided. A mounting assembly for use with a spindle, a CNC machine, an auto changer device and an air supply line, can include a mounting collar and a mounting block. The mounting collar can have a collar body and a collar arm, where the collar body defines a collar opening and one or more grooves circumscribing the collar opening, where the one or more grooves each have a sealing element positioned therein, and wherein the collar arm has a collar inlet, a collar outlet and a collar channel to provide fluid communication between the collar inlet and the collar outlet. The mounting block can be connected to the CNC machine and can have a block inlet connected to the air supply line, a block outlet, and a block channel to provide fluid communication between the block inlet and the block outlet.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: October 20, 2015
    Assignee: Air Turbine Technology, Inc.
    Inventor: Kemma Samuel Dodds
  • Patent number: 9089346
    Abstract: A surgical drill bit can include a body portion that defines a central axis that extends along a first direction. The body portion can be separated along the first direction into a distal cutting segment, and a guiding segment. The body portion can include a helical flute that winds about the central axis. The helical flute can define a first outer profile along the cutting segment and a second outer profile along the guiding segment, the first outer profile has a first leading edge and a first bearing surface and the second outer profile has a second leading edge and a second bearing surface. The first leading edge can be configured to cut into bone and can be spaced from the central axis by a first length. The second leading edge can be spaced from the central axis by a second length that is less than the first length.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: July 28, 2015
    Assignee: DePuy Synthes Products, Inc.
    Inventor: Robert J. Schoutens
  • Patent number: 9079255
    Abstract: A boring tool has a receiving part implemented as a borer body and a front part implemented as a borer head, which extend along a central axis and can be removably fastened to one another via driver connection. The driver connection has at least two coupling pairs which are separate from one another and are disposed eccentrically relative to the central axis. Each coupling pair is formed by interlocking coupling elements, namely a receiving pocket and a driver pin. The coupling elements have an asymmetrical cross-sectional area and widen with increasing distance to the central axis. Through this design, a reliable transmission of high torques is achieved with lower strains of the borer body in the area of the driver connection. Simultaneously, an automatic centering of the two tool parts to one another is performed.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: July 14, 2015
    Assignee: KENNAMETAL INC.
    Inventors: Horst Manfred Jager, Berthold Heinrich Zeug
  • Patent number: 9056360
    Abstract: Described is a multi-blade cutting and drilling finishing tool for machining deep or stepped bores. The tool comprises at least a first blade set having a nominal diameter and blades distributed essentially uniformly over the circumference. In order to make it easier to guide the tool along the central axis, a guiding strip set in the form of very accurately positioned cutting inserts is located axially behind the first blade set with respect to the axial direction of the tool in which the tool advances forward to machine the deep or stepped bores. Each of the cutting inserts is aligned with one of the blades of the first blade set in a direction parallel to an axis of the tool, and each of the cutting inserts has a nominal diameter which is smaller than the nominal diameter of the first blade set by essentially twice the size of a lubrication gap forming between the guiding strip set and the deep or stepped bores when the tool is used.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: June 16, 2015
    Assignee: Guehring OHG
    Inventors: Holger Ast, Lutfi Bozkurt, Peter Sommerfeldt, Jochen Bitzer
  • Publication number: 20150110567
    Abstract: A rotary cutting tool having a monolithic carbide cutting member defining a carbide cutting head and a carbide shaft extending outwardly from the cutting head. The shaft includes a conduit in fluid communication with a port for delivering coolant and/or lubricating fluid to an interface between the cutting tool and a work piece. The cutting head defines a peripheral portion and a plurality of carbide cutting edges alternating with flutes in the peripheral portion. The cutting head, the shaft, and the cutting edges are formed integrally with one another. A shank portion defines an elongated bore, and the shaft is received in the bore in a shrink-fit relationship, wherein the shaft of the cutting member is fixed against movement relative to the shank portion.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 23, 2015
    Applicant: Kennametal, Inc.
    Inventors: Li Ning, Thomas Bobos
  • Patent number: 8998543
    Abstract: The application comprises a blank for producing a cutting tool with at least one inner bore for conducting fluids, wherein the blank comprises at least a first and a second portion along, its longitudinal axis, wherein the inner bore in the first portion is formed substantially in a straight line and parallel to the longitudinal axis of the blank, and the inner bore in the second portion has a first twist with a first twist angle greater than zero, wherein the blank can be obtained by a continuous pressing operation, in particular a continuous extruding operation. The application also describes an extrusion device for producing a blank, wherein the extrusion device comprises a control element for controlling the twist angle, in particular the first and/or second twist angle.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: April 7, 2015
    Assignee: Guehring OHG
    Inventors: Manfred Schwenck, Armin Helbig
  • Publication number: 20150063931
    Abstract: An indexable drill assembly includes a drill body, which has a head portion at the axial forward end thereof and wherein the head portion has an outboard pocket and an inboard pocket. The drill body contains an outboard pocket coolant channel adjacent the outboard pocket and an inboard pocket coolant channel adjacent the inboard pocket. The outboard pocket has a seating surface and the outboard pocket coolant channel opening at the seating surface. The drill body further contains an outboard retention screw aperture opening in the seating surface wherein the seating surface contains an outboard coolant ring surrounding the retention screw aperture wherein the outboard coolant is being in fluid communication with the outboard pocket coolant channel. The inboard pocket has a seating surface and the inboard pocket coolant channel opens at the seating surface.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 5, 2015
    Applicant: Kennametal Inc.
    Inventors: Qiang Wu, Christoph Gey, Horst M. Jaeger, Michael A. Weisel, Nicholas J. Henry
  • Publication number: 20150056032
    Abstract: This document provides novel drills and/or reamers that are well-suited for making holes in a variety of materials including, but not limited to, metals, ceramics, glass, wood, plasterboard, plastics, stone, composites, synthetics, silicon or multi-layered or hybridized substrates. In some embodiments, these drilling devices have some centers of mass that are offset from the axis of rotation. Accordingly, such drills and/or reamers may rotate and cut using a precessional pattern of motion. Precessional cutting devices may display a mechanical wave pattern in relationship to the longitudinal axis of the device. If the cutting device is fabricated from a flexible material, for example Nickel-Titanium, bodily deflection of the device may result during rotation.
    Type: Application
    Filed: August 20, 2014
    Publication date: February 26, 2015
    Inventor: Michael J. Scianamblo
  • Patent number: 8944727
    Abstract: A drilling tool for machine tools has a drill body, a cutting head arranged on the front face of the drill body and a shaft arranged at the end thereof, wherein the drill body has two chip flutes, which are delimited at their flanks by ribs and a first chip flute of which is spirally curved. A second chip flute is not spiraled or is spirally curved with a pitch differing from the first chip flute, preferably running in the same direction of rotation.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: February 3, 2015
    Assignee: Komet Group GmbH
    Inventors: Hendrik Nitzsche, Gerhard Stolz, Hans Haidinger, Benno Spors
  • Patent number: 8944729
    Abstract: A tool for machining workpieces, having a shank and a cutting insert having a base body held in the shank. The shank has a slot accommodating the cutting insert. The body has a central section with a central axis. At least one convexly bowed centering surface running in the direction of the central section. At least one drive element originates from the central section. The slot in the shank has at least one interior surface region shaped to cooperate with the at least one centering surface.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: February 3, 2015
    Assignee: Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventor: Ulrich Krenzer
  • Patent number: 8926236
    Abstract: A drilling/reaming tool includes a basic body which extends in a longitudinal direction. The basic body includes at least one end-side drilling major cutting edge, a main flute which is assigned to said drilling major cutting edge and is wound at a first helix angle, and a plurality of reaming cutting edges which are arranged circumferentially on the basic body and have in each case one reamer flute which is assigned to the respective reaming cutting edge and is wound at a second helix angle. The reaming cutting edges adjoin the at least one major cutting edge directly in the longitudinal direction. Each reamer flute is merged into the main flute.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: January 6, 2015
    Assignee: Kennametal Inc.
    Inventors: Herbert Rudolf Kauper, Jurgen Schwaegerl
  • Publication number: 20140348602
    Abstract: A coupling part structured to engage with a complementary coupling part for interchangeably fastening a cutting head to a carrier of a rotary cutting tool. The coupling part includes a pair of coupling pins arranged opposite each other with respect to a central longitudinal axis and spaced apart from each other so as to form a receiving space structured to receive a central pin of the complementary coupling part. Each coupling pin includes a stop surface for transmitting a torque, a radially external outer surface, and a radially internal inner surface. At least one of the outer surface or inner surface is a clamping surface oriented in an obliquely inclined manner with respect to the central longitudinal axis for centering and clamping the coupling part.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 27, 2014
    Applicant: KENNAMETAL INC.
    Inventors: JUERGEN SCHWAEGERL, BERTHOLD HEINRICH ZEUG
  • Patent number: 8876442
    Abstract: The object of the invention is to stably spray cutting fluid in a good mist form, when cutting fluid and air are supplied from the surrounding area and cutting fluid is sprayed in a mist form from the tip end section of a rotary cutting tool. The rotary cutter of the present invention sequentially feeds a mixture of cutting fluid and air through a supply pipe 4, first supply path b in a cover 3, second supply paths c, d in a chuck 2, a hollow center cavity (front throttle chamber d, throttle 24a, and rear throttle chamber e) in the chuck, and a third supply path g in a rotary cutting tool 1.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: November 4, 2014
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Manabu Saito, Tatsuo Nakahata, Hideharu Takahashi
  • Patent number: 8845242
    Abstract: A coolant distributor for use with a cutting head of a machine tool that is adapted to be rotated about a rotational axis. The coolant distributor comprises a generally cylindrical body adapted to be coupled to the cutting head about the rotational axis, the generally cylindrical body having a first end and an opposite second end, the first end being disposed adjacent the cutting head when the generally cylindrical body is coupled to the cutting head. At least one feed passage is formed in the generally cylindrical body, the feed passage having a first end disposed proximate the first end of the generally cylindrical body and a second end disposed proximate the second end of the generally cylindrical body. A deflecting element is disposed in the feed passage proximate the second end of the feed passage. An outflow passage is connected to the feed passage and disposed obliquely to the rotational axis.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: September 30, 2014
    Assignee: Kennametal Inc.
    Inventors: Michael Schuffenhauer, Ramona Beck
  • Publication number: 20140255116
    Abstract: A replaceable cutting insert includes a cutting insert body having a forward cutting face and an opposing rearward base, an inlet coolant channel formed in the cutting insert body, a first outlet coolant channel formed in the cutting insert body and in fluid communication with the inlet coolant channel and a second outlet coolant channel formed in the cutting insert body and in fluid communication with the inlet coolant channel. The inlet coolant channel includes a longitudinal axis that is not axially aligned with either a first longitudinal axis of the first outlet coolant channel or a second longitudinal axis of the second outlet coolant channel. A rotary cutting tool incorporating the replaceable cutting insert is also provided. A method of making a replaceable cutting insert is also provided.
    Type: Application
    Filed: March 9, 2013
    Publication date: September 11, 2014
    Applicant: KENNAMETAL INC.
    Inventors: Neal S. Myers, Juergen Schwaegerl
  • Publication number: 20140255115
    Abstract: The invention is directed to a drill system that better uses the power curve of modern machine tools. The drill system uses a two-step drill, utilizing IC inserts to perform the major hole diameter cutting, and a central drilling system. In examples, the IC inserts can be set in a drill head in a single or double effective configuration. A central drilling system cuts the remaining minor diameter portion of the hole, and is configured to see less cutting surface footage, due to its position from the rotating center of the tool. The central drilling system may include a “self-centering” geometry, such that the drill head of the tool with be guided throughout the depth of the hole. The drill system allows for a large diameter deep hole that remains straight throughout to be drilled at higher speed and lighter feed rates thus offering a more productive tool that takes advantage of the power curves and lower thrust capabilities of modern machine tools.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 11, 2014
    Applicant: ALLIED MACHINE & ENGINEERING CORP.
    Inventor: Jared R. Zabrosky
  • Patent number: 8801342
    Abstract: There is provided a drill bit comprising a bit body having a receptor portion formed therein, the receptor portion being filled with a cutting oil; a drilling portion extended from one end of the bit body, having a channel coupled to the receptor portion formed therein, and having an opening formed in one end thereof and connected to the channel; and a cutting portion provided at a periphery of the opening of the drilling portion for drilling a workpiece, wherein the channel of the drilling portion has a small diameter in order that the cutting oil is not discharged outside of the channel by external pressure or gravitational force, and the channel of the drilling portion has a structure in which capillary action occurs due to cut chips flowing through the channel during drilling of the workpiece so that the cutting oil may be discharged by the capillary action.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: August 12, 2014
    Assignee: EHWA Diamond Industrial Co., Ltd.
    Inventors: Jae-Hyun Hong, Jong-Suk Choi, Do-Ui Hong
  • Patent number: 8777529
    Abstract: A rotary coolant adapter that is compatible with commercially available tool holders attaches to a rotary tool holder to supply coolant to a flow path in a rotary tool. The rotary coolant adapter has a stationary outer housing and a stationary supply tube for supplying coolant to an annular coolant manifold that surrounds a portion of the rotary tool holder. An internal radial feed tube supplies coolant from the annular coolant manifold to the flow path in the tool. Bearings support the stationary outer housing on the rotary coolant holder, and seals are located between the annular coolant manifold and the bearings to prevent coolant leakage from the annular manifold reaching the bearings.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: July 15, 2014
    Assignee: Creare Incorporated
    Inventors: Jay Christopher Rozzi, John Kendall Sanders, Nathan W. Brown, Michael Phillip Day
  • Patent number: 8764354
    Abstract: The invention relates to a cutting tool for a machine tool, comprising a cutting head (1), a shaft (2), and a coupling which removably fixes the cutting head (1) to the shaft (2), said coupling comprising a coupling pin (6) on the back of the cutting head (7) and a receptacle (5) in the shaft (2), which receptacle is complementary to the coupling pin (6) and accommodates the coupling pin (6) when the coupling is closed, comprising a central coolant channel (20) in the shaft (2), which separates into two sub-channels (12) in the region of the receptacle (5), the two sub-channels (12) flanking the receptacle (5) in the wall thereof and opening into the flat contact surface (10) annularly surrounding the opening edge (8) of the receptacle (5), and comprising a flat collar (16) on the back of the cutting head (7) having an annular distribution groove (15). The tool also comprises at least one coolant hole (19) connecting the cutting edges (14) on the cutting head (1) to the distribution groove (15).
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: July 1, 2014
    Assignee: Kennametal Inc.
    Inventors: Michael Schuffenhauer, Bernhard Eckl, Xaver Spichtinger, Armin Zimmermann
  • Patent number: 8678724
    Abstract: A tool holder includes: a shank portion gripped by a main shaft; a tool attachment portion having an insertion port into which a tool is inserted in a tip end surface thereof; a cover having a tubular wall that covers an outer periphery of the tool attachment portion and a bottom surface that covers the tip end surface of the tool attachment portion; a bearing provided between the tubular wall of the cover and the tool attachment portion; and a stopper that prevents the cover from co-rotating with the tool attachment portion. A through hole penetrated by the tool and an ejection port disposed on a periphery of the through hole in order to eject the coolant toward the tool are provided in the bottom surface of the cover.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: March 25, 2014
    Inventor: Sung Geun Lee
  • Patent number: 8672332
    Abstract: A combination of a chucking device and a drill and a chucking device for a drill with cutting tips on both ends. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: March 18, 2014
    Assignee: Kennametal Inc.
    Inventor: Herbert Rudolf Kauper
  • Patent number: 8668409
    Abstract: A twist drill includes a drill body having a chip flute extending a distance along the drill body. The chip flute has a leading edge and a run-out edge running along the chip flute. The run-out edge is disposed behind the leading edge in a direction of rotation of the twist drill. The chip flute, viewed cross-sectionally in a direction perpendicular to the longitudinal axis, includes a first wall portion and a second wall portion. The first wall portion extends along a curve between the run-out edge and the second wall portion. The second wall portion extends in a straight line from between the leading edge and the first wall portion. The first wall portion and the second wall portion are disposed adjoining one another and together define a J-shaped cross-sectional profile perpendicular to the longitudinal axis.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: March 11, 2014
    Assignee: Kennametal Inc.
    Inventor: Peter Karl Mergenthaler
  • Patent number: 8596935
    Abstract: A cutting tool comprises a cutting insert, a tool holder, and a fastener. The cutting insert comprises a cutting edge and a fastener bore adapted to accept a fastener for fastening together the cutting tool and tool holder. A coolant flow recess in the fastener bore is adapted to direct coolant through the coolant flow recess and toward a head portion of the fastener. The tool holder comprises an insert pocket adapted to removably fasten the cutting insert and fastener to the tool holder, and a coolant bore adapted to direct the coolant from the tool holder to the coolant flow recess of the fastener bore. The head portion of the fastener and the coolant flow recess of the fastener bore define a gap that directs the coolant to the cutting edge of the cutting insert.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: December 3, 2013
    Assignee: TDY Industries, LLC
    Inventors: X. Daniel Fang, Jean-Luc Dufour, David J. Wills
  • Publication number: 20130302101
    Abstract: A twist drill assembly (10) comprising a shaft (30) and a drill tip (20); the shaft having a single internal shaft conduit (34) for a fluid, extending between orifices (36, 37) formed into the shaft; the drill tip having an internal drill tip conduit (22) for the fluid, extending between orifices formed into the drill tip; the shaft and the drill tip configured such that the drill tip is connectable to an end of the shaft with the internal drill tip conduit in communication with the internal shaft conduit, allowing the fluid to be capable of flowing from the internal shaft conduit into the internal drill tip conduit; the internal shaft conduit having a spiral form aligned with a central longitudinal axis of the shaft, and configured to complement the arrangement of spiral flutes (38) formed on the shaft.
    Type: Application
    Filed: September 14, 2011
    Publication date: November 14, 2013
    Inventors: Terry Scanlon, John James Barry, James Doyle
  • Publication number: 20130266386
    Abstract: An object is to provide a drill bit with improved strength of joint between a bit tip and a bit shaft without diminishing dust suction performance of the drill bit. A drill bit 1 includes: a bit tip 3 including at least three cutting edge portions arranged at the distal end of the bit tip 3 such that they are spaced apart from each other in a circumferential direction, each cutting edge portion 3c having a rake face 3s and a relief face 3e forming a joint ridge L1 serving as a cutting edge; and a bit shaft 2 having a distal end face 2F welded to a proximal end face of the bit tip 3 such that the bit shaft 2 rotates integrally with the bit tip 3. The bit shaft 2 includes a dust suction passage 4 extending in the longitudinal direction of the bit shaft 2, such that the distal end of the dust suction passage 4 extends to a distal end portion of the bit shaft.
    Type: Application
    Filed: April 19, 2011
    Publication date: October 10, 2013
    Applicant: Kabushiki Kaisha Miyangaga
    Inventor: Masaaki Miyanaga
  • Publication number: 20130223943
    Abstract: A tool head for use with a modular shank tool includes at least two preforms. Each preform of the at least two prefroms is made separately from the other preform of the at least two preforms from granular materials and then put together and jointly compressed and integrally bonded.
    Type: Application
    Filed: January 30, 2013
    Publication date: August 29, 2013
    Applicant: Kennametal Inc.
    Inventor: Kennametal Inc.
  • Publication number: 20130136550
    Abstract: The present invention relates to a method and a device for manufacturing a blank for a round tool and to a blank for a round tool, and eventually to a method for manufacturing a round tool and to a round tool obtained. The device comprises a die for extrusion and a sleeve arrangement comprising a sleeve, and an end member for closing the sleeve in one end. Extrusion through the die continuously forms an extruded material comprising chip flutes and optionally internal coolant channels, which is received by the sleeve arrangement. The extruded material received by the sleeve arrangement is reworked and shaped to a shank portion after the interior shape of the sleeve arrangement. A projection of the end member protruding into the sleeve forms a bore in the blank. When the shank portion is finished the end member is released and moved forward as extrusion continues to form a fluted portion to complete the blank.
    Type: Application
    Filed: November 19, 2012
    Publication date: May 30, 2013
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventor: SANDVIK INTELLECTUAL PROPERTY AB
  • Publication number: 20130115017
    Abstract: The description shows a chip breaker system for a drilling, turning, milling or reaming tool, wherein the chip breaker system comprises: a portion of a flute and a first area which is produced by a progressive cut, wherein a first edge is arranged between the portion and the first area in such a way that chips produced by a cutting movement of the drilling, turning, milling or reaming tool can be broken at the first edge. The application further relates to a high-speed reamer comprising such a chip breaker system, a reamer made of solid carbide, a reamer with axially extending cooling channels which are disposed in a decentralized manner, a reamer with cooling channels which are unevenly distributed in the peripheral direction, and a reamer with cooling channels, wherein the outlet openings of the cooling channels are arranged on different cutting planes.
    Type: Application
    Filed: September 24, 2012
    Publication date: May 9, 2013
    Applicant: GUEHRING OHG
    Inventor: GUEHRING OHG
  • Publication number: 20130101362
    Abstract: A method for bonding together components, such as a tip and a shaft which include mutually facing carbide end surfaces. The tip includes circumferentially spaced flutes formed in its cylindrical outer periphery. The shaft has a cylindrical outer periphery and a plurality of coolant holes extending through the shaft. Bonding of the tip to the shaft is performed by inserting gauge wires into the coolant holes and associated flutes, and positioning brazing material between the first and second end surfaces. A water-soluble bond-blocking material is applied to the gauge wires for preventing brazing of the gauge wires to the brazing material. The brazing material is heated to braze the first and second end surfaces together while the flutes and their associated coolant holes are maintained in alignment by the gauge wires. Then, the gauge wires are removed, and residual bond-blocking material is dissolved in water.
    Type: Application
    Filed: October 24, 2012
    Publication date: April 25, 2013
    Applicant: DIAMOND INNOVATIONS, INC.
    Inventor: DIAMOND INNOVATIONS, INC.
  • Publication number: 20130004253
    Abstract: A drilling/reaming tool includes a basic body which extends in a longitudinal direction. The basic body includes at least one end-side drilling major cutting edge, a main flute which is assigned to said drilling major cutting edge and is wound at a first helix angle, and a plurality of reaming cutting edges which are arranged circumferentially on the basic body and have in each case one reamer flute which is assigned to the respective reaming cutting edge and is wound at a second helix angle. The reaming cutting edges adjoin the at least one major cutting edge directly in the longitudinal direction. Each reamer flute is merged into the main flute.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 3, 2013
    Applicant: KENNAMETAL, INC.
    Inventors: HERBERT RUDOLF KAUPER, JURGEN SCHWAEGERL
  • Patent number: 8342781
    Abstract: A drill body for chip removing machining, including a rotationally symmetrical envelope surface and front and rear ends between which a center axis extends, around which the envelope surface is rotatable in a predetermined direction of rotation. A head is formed in the front end that includes two cutting edges, each one of which includes a first part edge and a second part edge. The first part edge is included in a central tip part having a front end portion situated along the center axis. The second part edge extends between a peripheral end point positioned along the envelope surface and a radially inner end point where the second part edge transforms into the first part edge. The two first part edges converge at a positive nose angle (?) in an axially forward direction, and the two second part edges diverge at a negative angle (?) in the axially forward direction.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: January 1, 2013
    Assignee: Sandvik Intellectual Property AB
    Inventor: Kari Soittu
  • Publication number: 20120308319
    Abstract: A cutting tool for performing hole-cutting operations on a workpiece when the cutting tool is rotated about a central longitudinal axis. The cutting tool includes a generally cylindrical body having a first end structured to engage the workpiece and an opposite second end structured to be mounted to a machine tool; a groove formed in the first end of the generally cylindrical body, the groove disposed generally transverse to the longitudinal axis; and a nib portion disposed in, and coupled to, the groove via a brazing process.
    Type: Application
    Filed: June 3, 2011
    Publication date: December 6, 2012
    Inventors: Karthik Sampath, Armin Josef Zimmermann