With Separate Means To Fasten Tool Seat To Holder Patents (Class 407/101)
  • Patent number: 11325192
    Abstract: The invention relates to a cutting tool with a holder, a cutting insert and a screw, wherein the holder has at least one seat with a base, a first side wall and a second side wall, wherein in a plane parallel to the base the first side wall extends in a first direction and the second side wall includes an acute angle (C) with the first side wall, wherein the base has a threaded hole for receiving the screw, wherein the cutting insert has a cut-out for the screw, wherein the cutting insert has a base contact surface, a first positioning surface and a second positioning surface, and wherein in a locked position the base contact surface, the first positioning surface and the second positioning surface of the cutting insert contact the base, the first side wall and the second side wall of the at least one seat, respectively, wherein the second side wall is offset from the threaded hole in the first direction towards a front end of the seat, and in that a screw head of the screw and the cut-out of the cutting inse
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: May 10, 2022
    Assignee: Vargus Ltd.
    Inventors: Rafael Morgulis, Alexander Orlov
  • Patent number: 10906106
    Abstract: A turning tool adaptor includes opposite first and second side surfaces and a peripheral surface which extends therebetween. The turning tool adaptor further includes a cutting portion with an insert retaining portion and a clamping portion which extends from the cutting portion. The clamping portion includes a protrusion which extends transversely from the first side surface. The protrusion includes a main abutment surface and spaced apart first and second adaptor clamping bores which open out to the second side surface and also to the main abutment surface. The turning tool adaptor has first, second and third abutment surfaces which are located between the top and bottom surfaces in a side view perpendicular to one of the side surfaces.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: February 2, 2021
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, Asaf Malka
  • Patent number: 10646925
    Abstract: A tool includes a cutting insert with a shank, which extends along a cutting insert longitudinal axis, and with at least one cutting edge, wherein at least a part of the cutting insert is a first material and further includes a tool holder which extends along a holder longitudinal axis and includes on an end-face end a cutting insert receptacle for receiving the cutting insert shank, wherein the cutting insert receptacle is a cup-shaped recess. The tool further includes an attachment element which is connected to the cutting insert and extends in a circumferential direction around the cutting insert shank, wherein at least a part of the attachment element is a second, different material. The tool also includes a fastening element for fastening the cutting insert on the tool holder, wherein, in a mounted state, the fastening element contacts the attachment element to fasten the cutting insert on the tool holder.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: May 12, 2020
    Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbH
    Inventor: Rudolf J. Nagel
  • Patent number: 10507531
    Abstract: A cutting insert for profile turning, in particular for wheel profile turning, includes an upper surface, a lower surface, and side surfaces. At the transition from the upper surface to the side surfaces two cutting edges are formed for machining a workpiece and two further edges each having two ends. The two cutting edges are designed part-circular in shape and each extend from one end of one of the two edges to the opposite end of the other of the two edges. Also described is a cartridge for holding a cutting insert, the cartridge being mountable on a machine tool. The cartridge has a main seating surface having a plane angle (?) of greater than 90° to the axis of rotation (D) of the workpiece.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: December 17, 2019
    Assignee: KENNAMETAL INC.
    Inventors: Helmut Gremer, Frank Funke, Dieter Rosenland
  • Patent number: 10449608
    Abstract: A toolholder assembly includes a toolholder having a rearwardly facing toolholder shank, a base member having a bore configured for receiving the toolholder shank, a canister configured for receipt in the bore of the base member, a lock rod with an axial forward and an axial rearward end, wherein the axial forward end of the lock rod includes a compression void such as a compression aperture or compression slot formed therethrough, and at least one locking member in communication with the axial forward end of the lock rod.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: October 22, 2019
    Assignee: KENNAMETAL INC.
    Inventors: Alan J. Bookheimer, Jeremy Canonge, Edward J. Rusnica, Jr.
  • Patent number: 10391567
    Abstract: A rotary cutting tool for slotting and a cutting insert replaceably mounted to such a rotary cutting tool. The cutting insert is mounted to an insert pocket of a tool body of the rotary cutting tool and is pressed by an elastic pressure portion provided in the tool body. The cutting insert has an upper surface, a lower surface and four peripheral side surfaces. The top and lower surfaces have an inclined surface pressed by the elastic pressure portion. When the cutting insert is mounted to the insert pocket, the inclined surface of the upper surface is pressed by the elastic pressure portion. The inclined surface is inclined with respect to a cross section of the cutting insert such that the lower surface and two peripheral side surfaces of the cutting insert are contacted with the insert pocket by pressure of the elastic pressure portion.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: August 27, 2019
    Assignee: TaeguTec Ltd.
    Inventors: Chang Hee Choi, Chang Gyu Park, Su Jin Ryu
  • Patent number: 10279399
    Abstract: A milling tool with a disk- or strip-shaped base body, which can be driven around an axis of rotation, and several cutting inserts arranged along the outer circumference of the base body on opposite sides from one another, wherein the cutting inserts, viewed in the axial direction, overlap one another. The invention also relates to a tangential cutting insert for a milling tool of the above-mentioned type, with two side surfaces, through which a fastening opening extends, and two face ends, wherein cutting edges are formed at the junction of the front faces to the side surfaces, wherein the fastening opening is positioned eccentrically.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: May 7, 2019
    Assignee: KENNAMETAL INC
    Inventors: Markus Heinloth, Jan Gruenler, Hans Woerner
  • Patent number: 10239124
    Abstract: A cutting insert including a body having three vertices, an upper face, a lower face, and flank faces joining the upper and lower faces. At least one cutting edge is formed at an intersection between the upper face and the flank faces. A generally triangular-shaped island surrounds a central axis of the cutting insert and is higher in elevation than at least one portion of the upper face.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: March 26, 2019
    Assignee: KENNAMETAL INC.
    Inventors: Padmakumar Muthuswamy, Arunachalam Muthuchidambaram, Arvind Mani
  • Patent number: 10195673
    Abstract: A cutting insert includes a body made of a ceramic material. The body has a first surface, a second surface and at least one flank surface extending between the first surface and the second surface. The first surface includes a chip forming feature extending in a radially outwardly direction to a cutting edge and extending in a radially inwardly direction to an inner edge. The chip forming feature includes a front wall that slopes downward from the cutting edge radially inward toward a rounded bottom surface and a back wall that slopes upward from the rounded bottom surface radially inward to the inner edge. The chip forming feature can include an optional land surface between the cutting edge and the front wall.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: February 5, 2019
    Assignee: KENNAMETAL INC.
    Inventors: Jason Won Goldsmith, Kent Peter Mizgalski, Brad Daniel Hoffer, Lance David Brunetto
  • Patent number: 10165835
    Abstract: The specification relates to a gemstone setting. The gemstone setting includes a gemstone, a mounting surface and a braze joint. The braze joint is formed from a reactive metallic alloy with the reactive metallic alloy adhering the gemstone to the mounting surface. The braze joint is substantially concealed from a direct line of sight from a top portion of the gemstone by preventing excessive alloy from getting outside a desired braze area.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: January 1, 2019
    Inventors: Wayne L. Sunne, Jim Hicks, Rick Pierini, Ed Liguori, Quent Duden
  • Patent number: 10160040
    Abstract: A cutting tool having a tool holder, cutting insert and clamping member. The tool holder includes an elongated supporting surface extending in a rearward-to-forward direction. The cutting insert has a central portion and three cutting portions, the central portion having two opposing side surfaces and three spaced apart locating surfaces defining a first imaginary triangle. The cutting insert is indexable about a central axis intersecting the two side surfaces. Each locating surface intersects two of three bisector planes containing the central axis and bisecting respective corners of the first imaginary triangle, and the cutting edge of each cutting portion is located entirely outside of the first imaginary triangle. In each index position the clamping member is located entirely rearward of a first vertical plane containing the central axis and perpendicular to the rearward-to-forward direction, and one of the locating surfaces is in clamping contact with the supporting surface.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: December 25, 2018
    Assignee: Iscar, Ltd.
    Inventor: Shimon Athad
  • Patent number: 10131005
    Abstract: A cutting tool includes a cartridge-receiving pocket, and an adjustable cartridge assembly mounted in the cartridge-receiving pocket. The adjustable cartridge assembly includes a cartridge with an insert-receiving pocket and a wedge. The wedge has planar surfaces formed at taper angles of between greater than zero degrees and less than or equal to about five degrees that contact the bottom wall of the cartridge to move a cutting insert mounted in the insert-receiving pocket of the cartridge in a direction of a central axis of the cutting tool. The planar surfaces are at different distances from a central axis of the wedge to place the wedge in a minus, nominal or plus orientation, respectively.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: November 20, 2018
    Assignee: KENNAMETAL INC.
    Inventors: James Michael Waggle, Kevin Michael Gamble
  • Patent number: 10112241
    Abstract: A technical object of the present disclosure is to provide an insert, which can maintain rigidity thereof regardless of a clearance angle of a clearance surface that forms a circular cutting edge. To this end, the insert according to the present disclosure includes a circular upper surface, a circular lower surface, and a clearance surface portion connecting the upper surface and the lower surface. The clearance surface portion is divided into first and second clearance surfaces along a circumference thereof, by a first wave line that forms a waveform of valleys facing the lower surface and mounts facing the upper surface.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: October 30, 2018
    Assignee: KORLOY INC.
    Inventors: Sang-Yong Lee, Ki-Chan Nam, Nam-Sun Lee, Kane-Hee Lee, Sun-Yong Ahn, Young-Heum Kim
  • Patent number: 10076795
    Abstract: A reversible and indexable tangential milling insert includes two major surfaces and a peripheral surface which extends therebetween. The milling insert includes a mid-plane (M) located midway between the major surfaces, and an insert clamping bore with a central bore axis (H). The peripheral surface includes three side surfaces, each of which includes exactly two cutting portions, two relief portions and two minor abutment surfaces located on opposite sides of the mid-plane (M), each continuously extends between respective cutting portion and relief portion. Each cutting portion includes a major cutting edge, a minor cutting edge, and a corner cutting edge. In a cross section along a first imaginary plane perpendicular to the bore axis (H), each minor abutment surface is concavely curved, and on each side surface, the minor abutment surfaces converge outwardly.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: September 18, 2018
    Assignee: Iscar, Ltd.
    Inventor: Daniel Dagan
  • Patent number: 10071428
    Abstract: A holder according to one embodiment has a rod shape and includes a head portion located at a front end side. The head portion includes an upper jaw portion and a lower jaw portion located at a front end, an insert pocket located between the upper jaw portion and the lower jaw portion, a first wall surface located at an upper surface of the upper jaw portion and inclined in an extending manner from one side surface side, a second wall surface located closer to a rear end side than the first wall surface and inclined upward, a concave-shaped third wall surface located closer to the rear end side than the second wall surface, and a fourth wall surface inclined upward as the fourth wall surface extends away from the third wall surface. The third wall surface is concave downward from an upper end of the second wall surface.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: September 11, 2018
    Assignee: KYOCERA CORPORATION
    Inventor: Yukihiro Kusuda
  • Patent number: 10005141
    Abstract: A tool holder has a tool body with at least one pocket for receiving at least one cutting insert. The at least one pocket has a support surface and an abutment surface transverse thereto, and a first stress relief surface located between the support surface and the abutment surface. The first stress relief surface extends along a first axis towards a first pocket peripheral surface. A second stress relief surface is formed between the first stress relief surface and the first pocket peripheral surface. The second stress relief surface has a convex shape in a cross-sectional view taken in a second plane containing the first axis. The convex shape may have a radius greater than 0.3 mm.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: June 26, 2018
    Assignee: Iscar, Ltd.
    Inventor: Assaf Ballas
  • Patent number: 10005143
    Abstract: A cutting insert according to one embodiment includes upper and lower surfaces, a side surface including a front side surface, a rear side surface, and a pair of horizontal side surfaces, a first cutting edge, a second cutting edge, and a through hole extending from the upper surface to the lower surface. An opening of the through hole on a side of the upper surface is provided closer to a ridge line where the upper surface and the front side surface intersect each other than a ridge line where the upper surface and the rear side surface intersect each other. An opening of the through hole on a side of the lower surface is provided closer to a ridge line where the lower surface and the rear side surface intersect each other than a ridge line where the lower surface and the front side surface intersect each other.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: June 26, 2018
    Assignee: KYOCERA Corporation
    Inventor: Hirohisa Ishi
  • Patent number: 9802255
    Abstract: An assembly of a generally rhombus-shaped reversible cutting insert and a support seat. Each end surface of the cutting insert has a corner abutment surface adjacent each nose cutting edge, at least one inner abutment surface on one side of a lateral plane, and at least one inner abutment surface on the opposite side of the lateral plane, and each corner abutment surface is located closer to a median plane than its adjacent nose cutting edge. In each index position of the cutting insert on the support seat, only one corner abutment surface is in operative contact with one of a plurality of protruding supporting members of the support seat, and only the at least one inner abutment surface located on the opposite side of the lateral plane from the operative corner abutment surface is in contact with the at least one remaining supporting member.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: October 31, 2017
    Assignee: Iscar, Ltd.
    Inventor: Daniel Hen
  • Patent number: 9782844
    Abstract: An insert includes a rake angle set corresponding to the hardness of a material to be cut and that can suppress an increase in the material cost even when the strength of a cut edge section is increased. The insert has a polygonal shape and includes a cutting edge portion on at least one side of the polygonal shape. The cutting edge portion includes a rake face having a convex formed on one of opposite surfaces in the thickness direction a flank face having a concave formed on a surface intersecting with the one surface in the thickness direction and a concave cutting edge that is formed between the rake face and the flank face.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: October 10, 2017
    Assignee: Daishowa Seiki Kabushiki Kaisha
    Inventor: Tatsuya Ogata
  • Patent number: 9555477
    Abstract: A holder for grooving work includes a shank portion, and a head portion located on an end portion thereof. The head portion includes an insert attaching space, an upper and lower respectively located above and below the insert attaching space, a slit extending backward from the insert attaching space, an upper and a lower jaw connecting portions divided by the slit, an upper clamp surface on the upper jaw and a lower clamp surface on the lower jaw opposed to the insert attaching space. A column-shaped groove is connected to the deepest end of the slit. The column-shaped groove is formed to reduce the thickness of the upper jaw connecting portion, and extends from the lateral face on the side of the insert attaching space halfway along the deepest end of the slit toward the opposite lateral face. Upon attaching the insert to the holder the cutting tool is obtained.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: January 31, 2017
    Assignee: KYOCERA CORPORATION
    Inventor: Yuichi Tsuda
  • Patent number: 9511421
    Abstract: A clamp assembly to secure a cutting insert to a holder that includes a clamp that has a distal end and a clamp projection depending from the distal end of the clamp. There is a coolant plate that has a top plate surface and a bottom plate surface wherein the top plate surface contains a recess that receives the clamp projection upon assembly of the clamp and the coolant plate. The bottom plate surface contains a bowl having an open bowl end wherein in operation the bowl directs coolant through the open bowl end toward the cutting insert. The assembly has a positioner extending between the clamp and the coolant plate so as to maintain a position of the clamp relative to the coolant plate upon the assembly of the clamp and the coolant plate.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: December 6, 2016
    Assignee: KENNAMETAL INC.
    Inventors: Shi Chen, Nicholas J. Henry, Kent P. Mizgalski, Samuel L. Eichelberger
  • Patent number: 9481038
    Abstract: A cutting insert having a dovetail anti-slip arrangement for securing the cutting insert to a tool. The cutting insert's anti-slip arrangement includes first, second and third insert abutment surfaces having dovetail portions, each of which form an external and acute dovetail angle with an insert base surface. The dovetail portions are configured with one or more geometric features related to a cutting edge geometry of the cutting insert.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: November 1, 2016
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 9475131
    Abstract: A cutting tool, such as a milling cutter, includes a tool body and a plurality of pockets for receiving cutting inserts. Each pocket includes a bottom support surface, an radial support surface, an axial support surface, a first corner relief between the bottom support surface and the radial support surface, and a first stress relief formed in the first corner relief at one end of the pocket. The first stress relief is formed at an angle with respect to a plane parallel to the radial support surface. The first stress relief reduces a tensile stress of the cutting tool during a machining operation. A second and third stress relief may be formed in the first corner relief and/or in a second corner relief.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: October 25, 2016
    Assignee: KENNAMETAL INC.
    Inventors: James Michael Waggle, Ronald Louis Dudzinsky
  • Patent number: 9468976
    Abstract: A cutting device comprising a cutting insert and a holding part with a beam part, extending in a longitudinal direction, and a clamping head, which projects beyond an upper side of the holding part with a projection, wherein the projection is connected to a first of two clamping fingers which between them form a receiving pocket for receiving the cutting insert. A clamping gap is provided underneath the projection to allow the first clamping finger to be elastically movable. The clamping gap opens out into the receiving pocket and runs from an end face of the holding part that is facing the workpiece to be worked in the longitudinal direction up to the rear end of said holding part, which rear end is arranged in the transitional region between the clamping head and the beam part. A coolant and/or lubricant guide is provided for feeding coolant and/or lubricant to a coolant and/or lubricant outlet arranged in the projection.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: October 18, 2016
    Assignee: HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBH
    Inventor: Hans Schaefer
  • Patent number: 9421622
    Abstract: A central drill insert has a bottom surface, a top surface, and a peripheral surface extending therebetween. At least three lead drill portions protrude outwards from the peripheral surface, each having a drill axis and a plurality of drill cutting edges. A secondary cutting edge is adjacent each lead drill portion, extending along the intersection of the top surface and the peripheral surface, transversely to the respective drill axis. Each secondary cutting edge is spaced apart from the associated drill cutting edges along the drill axis. A dovetail abutment flank is formed on the peripheral surface along the intersection of the top surface and the peripheral surface, extending from each one of the lead drill portions towards the secondary cutting edge associated with another lead drill portion. A cutting tool has an insert pocket for retaining the central drill insert with the operative drill axis aligned with the tool axis.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: August 23, 2016
    Assignee: Iscar, Ltd.
    Inventors: Eden Segev, Mark Kitapov
  • Patent number: 9403214
    Abstract: A cutting tool holder blade is formed of hard metal, having a front plane, a perpendicular mid-plane. An insert pocket of the holder blade has a base jaw and a clamping jaw resiliently connected to the base jaw in a unitary one piece construction. The base jaw has a base jaw abutment surface and the clamping jaw has a clamping surface facing opposite the base jaw abutment surface, and an insert stop surface. A curved inner surface extends from the base jaw abutment surface towards and along the clamping jaw, the curved inner surface having a front extremity portion. The clamping jaw is narrowed down adjacent the front extremity portion, such that the clamping surface overhangs the front extremity portion of the curved inner surface, in a direction towards the base jaw and away from the front plane. The holder blade may be formed of cemented carbide.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: August 2, 2016
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 9314851
    Abstract: A cutting insert includes opposing forward and rear surfaces and a peripheral surface extending therebetween. The peripheral surface includes opposing side surfaces and opposing upper and lower surfaces. The upper surface and the forward surface intersect to form a main cutting edge having an associated relief surface that extends therefrom in the forward surface. One of the side surfaces comprises an insert side abutment surface. The rear surface comprises an insert rear abutment surface. The lower surface comprises an insert lower abutment surface. The insert rear and insert lower abutment surfaces form an obtuse abutment angle with respect to each other. In a side view along a side axis, a relief surface line tangent to the relief surface intersects the insert lower abutment surface.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: April 19, 2016
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 9242302
    Abstract: A cutting tool holder includes a pressing member with a pressing part and an inserting part, a holder body, a head member including a first fixing section which is divided into a first front end region and a first rear end region, and has a first fixing hole for inserting the inserting part of the pressing member and a contact part pressed by the pressing part of the pressing member, at a portion of a first surface close to the first front end region in reference to the first rear end region; and a second fixing section divided into a second front end region and a second rear end region in which the first rear end region of the first fixing section and the second rear end region are connected to each other so that a fixing space extending from the second rear end region to the second front end region is located between the second fixing section and a second surface different from the first surface in the first fixing section.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: January 26, 2016
    Assignee: Kyocera Corporation
    Inventor: Tetsuya Uno
  • Patent number: 9227246
    Abstract: A cutting tool for grooving and parting operations, comprising a tool holder provided at one of its side faces with a pocket in the shape of a polygon confined by a base support surface and at least a first and second side support surfaces projecting from the base support surface. A cutting insert is releasably securable in said pocket, said cutting insert being formed with a blade part and a base part with lateral surfaces protruding from the blade part. The base part is received in said pocket, such that a first and a second lateral surface of the base part contact the first side support surface and the second side support surface of the pocket, respectively. The first lateral surface is provided with a recess to the inside of the cutting insert, and the first side support surface is provided with a complementary projection to the inside of the cutting insert.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: January 5, 2016
    Assignee: Vargus Ltd.
    Inventor: Rafael Morgulis
  • Patent number: 9227248
    Abstract: A metal cutting tool has a supporting tool, which has a recess for accommodating a cutting plate. The cutting plate is provided with a damping trough, which is held in the supporting tool by a clamping claw. The clamping claw is fixed against the supporting tool by a clamping screw. A pressure piece is placed on the clamping claw and its underside facing the cutting plate is provided with a cam, which is in contact with the clamping trough and the clamping claw pulls the pressure piece toward the clamping screw.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: January 5, 2016
    Assignee: CeramTec GmbH
    Inventors: Otto Eder, Wolfgang Zitzlaff
  • Patent number: 9180523
    Abstract: A parting and grooving tool includes a toolholder and a cutting insert. The toolholder has a toolholder body including a main body portion and an elastic clamping arm that define an insert-receiving pocket. The pocket has a top surface formed by the clamping arm and a bottom surface formed by the main body portion for contacting a top and a bottom surface of a cutting insert. The toolholder body includes a second arm, the second arm and the clamping arm defining a slot. A threaded hole extends through the second arm to the slot. The toolholder has a screw having threads that mate with threads in the threaded hole so that the clamping arm is movable into and out of contact with the top surface of the insert. An axis of the threaded hole is substantially perpendicular to a longitudinal axis of the insert-receiving pocket and intersects the cutting insert.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: November 10, 2015
    Assignee: SECO TOOLS AB
    Inventor: Bjorn Gustavsson
  • Patent number: 9144850
    Abstract: A cutting insert for a multifunctional endmill is capable of using three corners. The cutting insert includes a top surface and a bottom surface having an outer shape of a substantially polygonal shape and four side surfaces extending between the top surface and the bottom surface, a first side surface has a positive flank angle, a second side surface has a positive flank angle, a third side surface has the positive flank angle, the first side surface includes a first and a second component surfaces connected with each other so that the first side surface protrudes outward from a peripheral surface of the cutting insert, and a connection portion between a first and a second component surface extends between the top surface and the bottom surface.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: September 29, 2015
    Assignee: Tungaloy Corporation
    Inventors: Masahiro Kurokawa, Kedar Suresh Bhagath
  • Patent number: 8974154
    Abstract: A cutting tool includes a polygonal cutter body and an end cutting insert for chipforming machining mounted in a serrated seat disposed at an axial end of the cutter body. A bottom surface of the insert has a plurality of parallel serrations meshing with corresponding serrations of the seat. The serrations extend transversely relative to the longitudinal axis for resisting axially rearward cutting forces applied to the insert. The seat is formed directly by the cutter body, or by a shim disposed beneath the insert. The shim is provided with a downward lip to transfer axial forces to the cutter body. The insert can be square or triangular, wherein the serrations are in the form of a plurality of sets of parallel serrations disposed adjacent respective cutting edges.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: March 10, 2015
    Assignee: Sandvik Intellectual Property AB
    Inventors: Brian D. Hoefler, Yevgeny Kocherovsky
  • Publication number: 20140294520
    Abstract: A cutting tool system comprising a carrier tool, a cutting plate having a clamping recess and a clamping element with an associated clamping bolt, wherein on the underside of the clamping element, which underside faces the cutting plate, an engagement element is arranged that is in clamping contact with the clamping recess in the engaged state and thereby anchors the cutting plate, and the clamping element is guided via a chamfer in such a manner that when tightening the clamping bolt, the clamping element is pulled in the clamping direction.
    Type: Application
    Filed: October 25, 2012
    Publication date: October 2, 2014
    Applicant: CERAMTEC GMBH
    Inventors: Uwe Henzler, Uwe Stemmer
  • Patent number: 8734063
    Abstract: A cutting tool assembly includes a cutting head having a coupling face provided with a multilateral recess, a shank having a coupling face provided with a multilateral recess corresponding to that of the cutting head, and a multilateral coupling plate which fits complementarily into the interior space created by the multilateral recesses. The cutting tool assembly provides a more stable coupling structure, since rotational torque is transmitted through the multilateral coupling plate from the shank to the cutting head, whereas in the prior art coupling screws are used to directly bear the torque force.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: May 27, 2014
    Assignee: Taegutec, Ltd.
    Inventor: Hong Sik Park
  • Publication number: 20140126969
    Abstract: A cutting tool for tube cutting machines includes a tool holder and a dismountable holder blade having replaceable cutting inserts. The tool holder includes a basic body, as well as a support body for the holder blade. There is arranged between the basic body and the support body a set-up body, by means of which the support body, and thereby the holder blade, can be set and fixed in the exact, desired spatial positions in the machine without time-consuming measuring and fine adjustment operations. In addition, the holder blade is fixed in the support body by means of a single simple screw, which allows a flexible mounting and dismounting of the same.
    Type: Application
    Filed: November 7, 2013
    Publication date: May 8, 2014
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventor: Roger Törnström
  • Patent number: 8696258
    Abstract: A cutting tool for machining metallic materials has at least one cutting portion having a cartridge and a cartridge pocket for mounting cutting inserts to the cutting tool. The cartridge pocket has a top surface, a rear supporting surface and a bottom supporting surface. The top surface of the cartridge pocket has one or more serrated projecting portions. The cartridge has an insert pocket, a top surface, a first side surface and a bottom surface. The insert pocket of the cartridge receives a cutting insert. The top surface of the cartridge has one or more outwardly sloped surfaces and one or more inwardly sloped surfaces. The outwardly sloped surfaces mate with the serrated projecting portions. The inwardly sloped surfaces have a gap with respect to the projecting portions of the cartridge pocket.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: April 15, 2014
    Assignee: TaeguTec, Ltd.
    Inventors: Chang Hee Choi, Chang Gyu Park
  • Patent number: 8696259
    Abstract: A tool holder has a body portion and a holding portion, the holding portion having a base jaw and a clamping jaw, with an insert receiving pocket therebetween extending in a forward to rearward direction, and a first slot extending generally rearwardly from the insert receiving pocket. The base jaw has a support surface, and the clamping jaw has upper and lower arms separated by a second slot and extending in the generally forward direction. The lower arm has a forward end and an under surface facing towards the support surface, the under surface having a clamping portion adjacent the forward end. The upper arm has a bore which opens out to the second slot at a location rearward of the clamping portion. The bore can accommodate a force application member which can contact and displace the lower arm towards the base jaw to clamp a cutting insert.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: April 15, 2014
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8690495
    Abstract: A cutting tool for machining large workpieces having relatively a large cutting amount and a cutting insert configured to be used with the cutting tool. The cutting tool includes a cutting insert and a wedge for clamping the cutting insert. The cutting insert has a polygonal top surface, which comprises a recessed portion having a plurality of inclined abutment surfaces which are inclined toward the center of the top surface. The outline of said recessed portion is twisted at a predetermined angle with respect to the outline of the top surface. The wedge includes a projecting portion that contacts the inclined abutment surface and pushes the cutting insert so that two side surfaces of the cutting insert can be supported by a radial inner side surface and a lateral supporting surface of an insert seat.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: April 8, 2014
    Assignee: TaeguTec, Ltd.
    Inventor: Chang Hee Choi
  • Publication number: 20130294854
    Abstract: A cutting tool assembly has a cutting insert, an insert holder and a tool shank. The insert holder has an insert receiving slot, a plurality of through holes and first and second recesses. Clamping screws pass through the through holes. The first and second recesses are located at an edge of a rear surface of the insert holder and are opposed to each other relative to an orientation of the slot. The tool shank has a plurality of threaded holes and first and second flanges. The clamping screws engage the threaded holes. The first and second flanges are opposed to each other and engage the first and second recesses, respectively. The insert holder is removably mounted to the tool shank by the clamping screws. The through holes are offset from the threaded holes when the insert holder is mounted to the tool shank.
    Type: Application
    Filed: April 23, 2013
    Publication date: November 7, 2013
    Applicant: TaeguTec, Ltd.
    Inventor: Chul Ho LEE
  • Patent number: 8568065
    Abstract: A cutting tool has an insert holder for retaining a tangential cutting insert in an insert pocket. The insert pocket has a bottom surface, a rear surface and a base surface. The base surface has three abutment protuberances that extend from the base surface. Each base abutment protuberance has a respective base abutment surface. The three base abutment surfaces abut the cutting insert at three points to provide stable seating of the cutting insert in the insert pocket.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: October 29, 2013
    Assignee: Iscar, Ltd.
    Inventors: Grigori Neiman, Yuri Davidov
  • Publication number: 20130279995
    Abstract: A cutting tool assembly has a tool holder, a tool head and a tool head fastening member. The tool holder includes holder front and top ends, with a holder mating surface extending therebetween. A holder clamping portion is located rearwards from the holder mating surface. The tool head has a tool head bottom end provided with a tool head mating surface. A tool head clamping recess extends upwards from the tool head bottom end, rearwards from the tool head mating surface. In an assembled position of the cutting tool assembly, the tool head mating surface forms a dovetail connection with the holder mating surface, and the tool head fastening member clamps the tool head clamping recess, thereby externally clamping the tool head to the tool holder.
    Type: Application
    Filed: April 19, 2012
    Publication date: October 24, 2013
    Applicant: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8556549
    Abstract: In a head member (30) for this cutting tool with detachable insert (70), a slit (38) is provided so as to further extend towards a rear end side from a rear end for an insert attachment seat formed by a pressing surface of an upper jaw portion of a head member body (31) and a pedestal surface of a lower jaw portion (33). Also, a clamp screw engaged with the upper jaw portion is screwed while inclining in a direction separated as it moves towards the lower jaw portion (33), with respect to an imaginary plane (P) which extends along an extension direction of the slit (38) and in a direction in which the pressing surface and the pedestal surface face each other, whereby the upper jaw portion is enabled to elastically deform by using as a fulcrum a connecting portion 39 between a rear wall surface (38B) of the slit (38), and a rear end surface (31F) of the head member body (31).
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: October 15, 2013
    Assignee: Mitsubishi Materials Corporation
    Inventors: Hidehiko Nagaya, Norio Aso, Yasuharu Imai
  • Patent number: 8506208
    Abstract: A shim plate for milling tools for chip removing machining, including an upperside, an underside, and at least one side surface extending between the upperside and the underside and forming an angle ?90° with the upperside. A through hole includes a first section mouthing in the upperside, and a second section mouthing in the underside and having a diameter that is smaller than a diameter of the first section. The upperside at least partially transforms into the side surface via an edge portion configured to be an active auxiliary chip-removing cutting edge upon failure of a cooperating cutting insert. The edge portion includes a chamfer surface that forms an obtuse angle (?) with the upperside.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: August 13, 2013
    Assignee: Sandvik Intellectual Property AB
    Inventor: Tord Engström
  • Patent number: 8479622
    Abstract: A cutting tool assembly for boring and internal grooving operations includes a tool head having a removably secured cutting insert at a forward insert receiving end and a rear mating end with a male or female type tool holder coupler in the form of an engagement protrusion or cutting holder receiving pocket. The tool head is fixed to a tool holder with a front mating end having a female or male tool head coupler in the form of a tool head receiving pocket or engagement protrusion. Following assembly, at least three abutting wall surfaces and an adjacent support surface of the tool holder coupler are in contact with at least three non-coplanar abutment surfaces and an adjacent supporting surface of the tool head coupler, respectively, and a fastening screw member extends through a through bore in the tool holder coupler engaging a threaded screw bore in the tool head coupler.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: July 9, 2013
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Publication number: 20130129435
    Abstract: The present invention relates to an exchangeable insert seat member for a metal cutting tool comprising a tool body and a cutting insert, wherein the exchangeable insert seat member is arranged to be placed between the tool body and the cutting insert wherein said exchangeable insert seat member is contacting said tool body and said cutting insert at contact areas arranged such that there is no direct contact between the tool body and the cutting insert and wherein said exchangeable insert seat member is produced by powder injection molding. The present invention also relates to a metal cutting tool comprising such an exchangeable insert seat member.
    Type: Application
    Filed: November 21, 2012
    Publication date: May 23, 2013
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventor: SANDVIK INTELLECTUAL PROPERTY AB
  • Patent number: 8434973
    Abstract: A clamping mechanism includes a male portion and a female portion. The male portion has a forwardly extending locking protrusion, and an alignment protrusion extending forwardly of the locking protrusion. A rear of the female portion has a forwardly extending locking bore and an alignment bore extending forwardly from a front end of the locking bore. The locking bore has an insertion bore portion which merges with a gripping bore portion. The insertion bore portion has an insertion bore axis while the gripping bore portion has a gripping bore axis that is spaced apart by a non-zero first distance from the insertion bore axis. In a clamped position, the alignment protrusion abuts a portion of the alignment bore and the locking protrusion abuts the gripping bore portion along a gripping angular extension, thereby forming a circumferential interference fit.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: May 7, 2013
    Assignee: Iscar, Ltd.
    Inventor: Hanoch Guy
  • Patent number: 8403603
    Abstract: A tool holder as a carrier tool for a cutting tool for turning, milling or drilling applications for the machining of primarily metal materials, having an incorporated receiving recess with seat walls for receiving a cutting body, wherein the cutting body is fastened with fastening means.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: March 26, 2013
    Assignee: CeramTec GmbH
    Inventors: Wolfgang Zitzlaff, Otto Eder, Holger Rusch
  • Patent number: 8388268
    Abstract: A toolholder has a head region, which contains a slot separating the head region into a lower section and an upper section, with a lower seat and an upper section to retain a cutting insert. The head region contains a coolant entrance passage, which receives coolant from a coolant source, and a coolant delivery passage, which discharges coolant toward a cutting insert. The head region further contains a fastener bore, which receives a fastener. The fastener has an axial fastener bore which provides fluid communication between the coolant entrance passage and a coolant reservoir between the fastener and the fastener bore. The coolant delivery passage communicates with the coolant reservoir to receive coolant, which passed from the coolant entrance passage and through the axial fastener bore into the coolant reservoir.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: March 5, 2013
    Assignee: Kennametal Inc.
    Inventors: Nicholas J. Henry, Charles L. Conway
  • Patent number: 8388271
    Abstract: A cutting tool assembly includes an exchangeable adapter releasably secured to a holder. The adapter is provided with a side plate. In a bottom view of the holder, a portion of a front surface of the holder adjacent a first side surface of the holder forms an internal acute angle ? with the first holder side surface and in a bottom view of the adapter, a rear surface of the adapter side plate forms the acute angle ? with an inner side surface of the adapter.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: March 5, 2013
    Assignee: Iscar, Ltd.
    Inventors: Moshe Elbaz, Nader Farraj, Yossi Abrahami