Apertured Tool Patents (Class 407/48)
  • Patent number: 10160050
    Abstract: The invention relates to a tool head for a rotary tool. The tool head extends along, and rotates about, a rotational axis in a rotational direction during operation. The tool head is designed for replaceable fastening on a carrier shank of the rotary tool and comprises on the back thereof a coupling surface comprising a first serration having a plurality of ribs running parallel to one another and grooves running parallel to one another. The first serration comprises at least two part-serrations oriented toward one another in the rotational direction at an angle. Each part-serration having a plurality of ribs and grooves running parallel, for centering the tool head relative to the carrier shank. The invention furthermore relates to a rotary tool having such a tool head.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: December 25, 2018
    Assignee: KENNAMETAL, INC.
    Inventor: Michael Hacker
  • Patent number: 10105763
    Abstract: A drilling and milling tool (100) for a metallic workpiece, with a drilling and milling shank (120) having a plurality of circumferentially-cutting cutter tips (151, 152, 153, 154) and a plurality of front-end-cutting cutter tips (131, 132). At least one of the front-end-cutting cutter tips (132) is, at the same time, a circumferentially-cutting cutter tip whose radially outermost cutting point or cutting edge section projects, in the radial direction (R), beyond the circumferentially-cutting cutter tips (151 152, 153, 154). The circumferentially-cutting cutter tips (151, 152, 153, 154) are made with straight cutting edges and together these cutting edges produce a cylindrical cut contour. Two methods that can be carried out with the drilling and milling tool (100) for producing a through-going bore in a metallic workpiece.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: October 23, 2018
    Assignee: ZF Friedrichshafen AG
    Inventors: Andre Burhorst, Guido Matz
  • Patent number: 9289836
    Abstract: A cutting insert having two end surfaces and a peripheral surface, the end surfaces located on opposite sides of a mid-plane, each end surface having three primary apexes and three secondary apexes. Six cutting portions are formed along the intersection of the peripheral surface and the end surfaces. Each cutting portion has a first cutting edge and a second cutting edge extending transversely thereto. A ramping cutting edge extends between the second cutting edge of each cutting portion and the first cutting edge of an adjacent cutting portion. The peripheral surface has a clearance surface extending from each of the second cutting edges towards the mid-plane. The abutment planes of the insert are parallel to the mid-plane. Each of the first cutting edges lies between an adjacent abutment plane and adjacent primary apex.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: March 22, 2016
    Assignee: Iscar, Ltd.
    Inventors: Alexander Koifman, Alexander Passov, Alexander Bronshteyn, Yanina Kunitsa
  • Patent number: 9138815
    Abstract: A cutting insert includes two supporting surfaces and four side surfaces located between the two supporting surfaces. Each side surface intersects with two other side surfaces of the four side surfaces to form four corners. The four side surfaces intersect with the two supporting surfaces to form, at two of the four corners, four cutting corners, each cutting corner including a first and a second cutting edge component, and to form, at two other ones of the four corners, four non-cutting corners. Each supporting surface includes a surface portion and an angled supporting surface. A plane of the angled supporting surface intersects with a plane of the surface portion along a line of intersection and forms a non-zero angle with the plane of the surface portion. A toolholder and a cutting tool are also disclosed.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: September 22, 2015
    Assignee: Seco Tools AB
    Inventor: Mikael Jansson
  • Publication number: 20150139743
    Abstract: A single-sided ramping milling insert for ramping operations has top and bottom surfaces and a peripheral surface which extends therebetween. The peripheral surface meets the top and bottom surfaces at respective top and bottom edges. The top edge includes two opposite side cutting edges, two opposite ramping cutting edges, two diagonally opposite raised corner cutting edges and two diagonally opposite associated lowered corner cutting edges. The lowered corner cutting edges are closer to the bottom surface than the raised corner cutting edges. The bottom edge has two diagonally opposite bottom corner edges. The lowered corner cutting edges and the bottom corner edges are convexly curved and a depression is recessed into the peripheral surface between each lowered corner cutting edge and its associated bottom corner edge, the depression configured for providing relief from a convex workpiece surface cut by the lowered corner cutting edge during ramping operations.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 21, 2015
    Applicant: Iscar, Ltd.
    Inventor: Assaf BALLAS
  • Patent number: 9033621
    Abstract: A cutting insert (14) is formed with an insert aperture (32) opening out to insert top and bottom surfaces (14A, 14B) of the cutting insert (14). In a plan view of the insert top surface (14A), the cutting insert (14) and the insert aperture (32) both have oblong shapes which are elongated along a common insert longitudinal axis (AIL). The aperture (32) includes first and second side surfaces (32A1, 32A2) which each extend along the insert longitudinal axis (AIL), and aperture first and second end surfaces (32B1, 32B2) which each extend transverse relative to the insert longitudinal axis (AIL). At least one of the aperture first and second end surfaces (32B1, 32B2) is formed with a clamping lip (32C1, 32C2).
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: May 19, 2015
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8950983
    Abstract: A cutting tool has a main tool body and at least one insert seat disposed thereon. The seat has a bottom surface for mounting a cutting insert, and further has a dowel pin, which penetrates a through-hole of the mounted cutting insert and the bottom surface and can be fixed to the main tool body. A center longitudinal axis of the fixed dowel pin is arranged at an acute angle with respect to the bottom surface. The dowel pin contains a spherical segment for mounting on a bearing surface of the through-hole. The surface of the spherical segment is interrupted by a segment groove.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: February 10, 2015
    Assignee: Ceratizit Austria Gesellschaft mbH
    Inventors: Peter Burtscher, Anton Diepold, Uwe Schleinkofer
  • Patent number: 8905683
    Abstract: A cutting tool has a cutting insert removably secured to a tool body by a fastening member. The cutting insert includes a clamping bore having at least two upper and at least two lower clamping portions intersecting a first and a second horizontal plane, respectively, the first and second horizontal planes being perpendicular to a central axis and spaced apart from each other, and the clamping bore being non-circular at cross-sections taken in the first and second horizontal planes. Upper and lower imaginary lines tangential to the at least two upper and the at least two lower clamping portions, respectively, form zero or acute first and second clamping angles with the central axis, the first and second clamping angles being different. Exactly two upper and exactly two lower clamping portions are in simultaneous clamping contact with an equal number of corresponding clamping zones on the fastening member.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: December 9, 2014
    Assignee: Iscar, Ltd.
    Inventors: Amir Satran, Evgeny Tulchinsky
  • Patent number: 8899888
    Abstract: What is provided is a tip dresser (10) capable of smoothly discharging shavings (70) by a breaker (60) provided on a cutter (40). The tip dresser includes a cutter (40) having cutting blades (47) for cutting the tip end portions (2) of a pair of electrode tips (1) and an attaching hole (50), a holder (20) to which the cutter is attached by screwing an attaching screw (55) inserted through the attaching hole, and a rotary drive portion that holds rotatably the holder. On the surface side (46) of the cutter, the breaker (60) for discharging shavings is disposed. The breaker is formed into a plate shape having an insertion hole (62) through which the attaching screw is inserted to tighten the breaker together with the cutter by an attaching screw.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: December 2, 2014
    Assignee: Kyokutoh Co., Ltd.
    Inventor: Kotaro Nakajima
  • Patent number: 8882404
    Abstract: A cutting tool comprising a cutting tool holder and a cutting insert adapted to be mounted thereon. The tool holder comprises an insert seat defined by a base and at least one side wall extending from the base to define an insert seat space adapted to receive therein the insert. The seat comprises a support element extending into the insert seat from the base, and a fastening member engageable with the seat. The fastening member is displaceable with respect thereto between a mounting position adapted to allow the insert to be mounted onto the seat and a securing position adapted for securing the insert within the seat. The insert is formed with a securing cavity and when the insert is mounted onto the tool holder and is in the securing position, a portion of the support element and the fastening member is received within the cavity of the insert.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: November 11, 2014
    Assignee: No Screw Ltd
    Inventor: Gershon Harif
  • Patent number: 8858130
    Abstract: An indexable, invertable cutting insert has radially-oriented positioning segments on a front face of the insert and radially-oriented positioning segments on the back face of the insert. The radially-oriented positioning segments are shifted on the front face relative to those on the back face such that, when the cutting insert is engaged within the toolholder, the cutting segment utilized on the front face will never be directly opposite the cutting segment utilized on the back face. A toolholder system is made up of the cutting insert and a toolholder capable of securing and indexing the cutting insert.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: October 14, 2014
    Assignee: Kennametal Inc.
    Inventors: Lewis Ray Morrison, Howard Murphy, Gianfranco Accardi, Marco Procopio, Andreas Lieber, Juan Seculi, Kumar Reddy Mylavaram Nikhilesh
  • Patent number: 8834075
    Abstract: A cutting insert has a top surface and a bottom surface having a parallelogram shape, and four side surfaces connecting the top and bottom surfaces. One or more primary cutting edges are formed at intersections between the top and bottom surfaces and two opposing side surfaces. Secondary cutting edges are formed at intersections between the top and bottom surfaces and two other opposing side surfaces. The primary cutting edge forms a first angle with respect to a median plane parallel to the top and bottom surfaces. The secondary cutting edge forms a second angle with respect to the median plane. The top and bottom surfaces have a mounting surface and a rack surface, wherein the rack surface extends inwardly from the cutting edge toward the median plane. The top and bottom surfaces of the cutting insert have mirror symmetry with respect to the median plane.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: September 16, 2014
    Assignee: TaeguTec, Ltd.
    Inventors: Chang Hee Choi, Chang Gyu Park
  • Patent number: 8794878
    Abstract: A cutting tool comprising a cutting tool holder and a cutting insert adapted to be mounted thereon. The tool holder comprises an insert seat defined by a base and at least one side wall extending from the base to define an insert seat space adapted to receive therein the insert. The seat comprises a support element extending into the insert seat from the base, and a fastening member engageable with the seat. The fastening member is displaceable with respect thereto between a mounting position adapted to allow the insert to be mounted onto the seat and a securing position adapted for securing the insert within the seat. The insert is formed with a securing cavity and when the insert is mounted onto the tool holder and is in the securing position, a portion of the support element and the fastening member is received within the cavity of the insert.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: August 5, 2014
    Assignee: No Screw Ltd
    Inventor: Gershon Harif
  • Patent number: 8734069
    Abstract: A rotary cutting tool is provided with a tool body having a shank portion and a neck portion, an insert attachment seat formed at the tip of the neck portion, and a cutting insert detachably mounted on the insert attachment seat so as to be coaxial with the axis line of the shank portion. The insert attachment seat is provided with a bottom surface on which a side surface which serves as a seating surface of a cutting insert is seated and a wall surface in contact with a peripheral surface of the cutting insert. On the bottom surface, a plurality of recessed grooves which are recessed from the bottom surface to extend in the circumferential direction of the neck portion, with the both ends being opened on an outer peripheral surface of the neck portion.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: May 27, 2014
    Assignee: Mitsubishi Materials Corporation
    Inventors: Taro Abe, Toru Narita, Sachio Yamada
  • Patent number: 8696260
    Abstract: The present invention relates to a tool for machining a workpiece, comprising a tool body, a cutting tool, and fastening means for fastening the cutting tool in a receiving recess of the tool body, the cutting tool having a cutting edge and a cutting-tool through-bore, and the tool body having a tool-body through-bore that opens into the receiving recess, wherein the fastening means comprises a clamping bushing that is provided with an internal thread, and comprises a clamping screw that is provided with an external thread corresponding to the internal thread of the clamping bushing, which are inserted into the cutting-tool bore or into the tool-body bore from opposing sides in order to fasten the cutting tool to the tool body, the clamping bushing is screwed directly to the clamping screw, irrespective of whether it is inserted into the cutting-tool bore or into the tool-body bore, and anti-rotation means are provided to prevent the clamping bushing from rotating about its longitudinal axis when being screwe
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: April 15, 2014
    Assignee: Hartmetall-Werkzeugfabrik Paul Horn
    Inventors: Matthias Oettle, Uli Ruoff
  • Patent number: 8696257
    Abstract: The cutting insert is provided with a polygonal-shaped insert main body (2) having two polygonal surfaces (3, 3) spaced away from each other and a plurality of side surfaces formed between these polygonal surfaces and also provided with cutting edges (8A, 8B, 8C) formed as a rake face on a peripheral edge of a first side surface (4) among the plurality of side surfaces.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: April 15, 2014
    Assignee: Mitsubishi Materials Corporation
    Inventors: Takayoshi Saito, Nobukazu Horiike, Jun Kitajima
  • Patent number: 8690490
    Abstract: The invention related to a milling tool (1) for machining work pieces, comprising at least one blade that is arranged in a radial manner on the milling head (2) that is rotationally mounted on a rotationally symmetrical designed Y-axis (4) on the milling head. According to the invention, said indexable cutting insert (2) is arranged below a tolerance play (7) in a freely rotating manner on the free end (8) of a mounting pin (9) secured in a detachable manner to the milling head (3) below the clamping seat. The freely rotationally mounted indexable cutting insert (2) is mounted or surrounded on the entire surface of the rear side (10) and on certain pats on the front side (11) such that the mounting pin (9) does not detach itself from the material (12) of the milling head (3).
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: April 8, 2014
    Inventor: Franz Josef Pokolm
  • Publication number: 20140086694
    Abstract: A double-sided cutting insert may generally comprise: a top surface; a bottom surface; at least one side surface interconnecting the top surface and the bottom surface and forming at least one cutting edge; a through hole extending between the top surface and bottom surface; and wherein each of the top surface and bottom surface comprise an anti-rotation element comprising a single recess comprising a generally cyclic conical periphery. Each of the top surface and bottom surface may comprise at least one cyclic conical face. The recess may comprise a geometry that is complementary to the at least one cyclic conical face of the projection in an insert receiving pocket in a tool holder. A cutting tool incorporating one or more of the cutting inserts, and methods of making and using the cutting inserts are also described.
    Type: Application
    Filed: February 22, 2013
    Publication date: March 27, 2014
    Applicant: Kennametal Inc.
    Inventors: X. Daniel Fang, Jean-Luc Dufour, David J. Wills
  • Patent number: 8657539
    Abstract: A round cutting insert with a reverse anti-rotation feature that can be manufactured easily and inexpensively is disclosed. The round cutting insert includes a plurality of dimples formed on a first surface and another plurality of dimples formed on a second, opposing surface. The round insert is reversible and indexable. The round cutting insert is removable received in an insert receiving pocket in a tool body. The insert receiving pocket includes a single projection that is capable of being received in one of the plurality of dimples. The cooperation between the projection and one of the plurality of dimples prevents rotation of the round cutting insert when mounted in the insert receiving pocket. The plurality of dimples and the projection can be any desirable complimentary shape, such as a slot, a V-shape, a wagon wheel, a sports wheel, a pyramid, and the like.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: February 25, 2014
    Assignee: Kennametal Inc.
    Inventors: Lewis Ray Morrison, Kumar Reddy Mylavaram Nikhilesh, Suresh Mali
  • Patent number: 8647024
    Abstract: A cutting edge-replaceable cutting tool includes a tool body, and a cutting insert is removably installed on the tool body. The cutting tool-replaceable cutting tool includes an insert mounting seat formed on the tool body and on which the cutting insert is mounted, and a upper wall portion formed integrally with the tool body and overhanging the insert mounting seat.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 11, 2014
    Assignee: Tungaloy Corporation
    Inventor: Ryuichi Saji
  • Publication number: 20130294851
    Abstract: A milling tool for slot milling includes a tool body and a plurality of separated first seats, which form root insert seats for root inserts arranged one after the other along a first line and a plurality of separated flank insert seats that includes a plurality of second seats for flank inserts . The plurality of second seats is arranged one after the other along a second line on a primary side of the root insert seats. A plurality of third seats for flank inserts is arranged one after the other along a third line on a secondary side of the root insert seats. Each flank insert seat includes a bottom surface, an inner side surface, and an outer side surface. Each flank insert includes an under side, an opposite upper side, and a circumferential edge side that forms a rake face connecting the upper side and the underside.
    Type: Application
    Filed: April 29, 2013
    Publication date: November 7, 2013
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventor: Thomas SÅGSTRÖM
  • Publication number: 20130251464
    Abstract: A triangular cutting insert has first and second surfaces, a midplane, a peripheral surface, with an insert center axis. The peripheral surface has alternating relief flanks and corners. A major cutting edge formed between each relief flank and the first and second surfaces, connects at a corner to a wiper edge included in a bounding plane of the insert. The wiper edge further connects to a transitional slope directed toward the midplane and an adjacent major cutting edge. Viewed along the insert center axis, an insert footprint is symmetrical to each corner bisector, and each major cutting edge is perpendicular to the associated secondary slope. Viewed perpendicular to the bisector, the relief flank is in a peripheral plane, and the transitional slope is between the peripheral plane and the insert center axis. Viewed along the corner bisector, each visible major cutting edge forms a first angle with the bounding plane.
    Type: Application
    Filed: March 22, 2012
    Publication date: September 26, 2013
    Applicant: Iscar, Ltd.
    Inventor: Gil Hecht
  • Publication number: 20130216319
    Abstract: A toolholder for holding a plurality of types of removable cutting inserts is provided. The toolholder includes a toolholder body having an insert-receiving recess. The recess includes an insert abutment surface for abutting a corresponding insert supporting surface of an insert. The insert abutment surface includes a first portion that abuts a first insert supporting surface of a first type of cutting insert and a second portion abuts a second insert supporting surface of a second type of cutting insert.
    Type: Application
    Filed: October 27, 2011
    Publication date: August 22, 2013
    Applicant: SECO TOOLS AB
    Inventors: Benjamin Michelet, Bertrand Riviere
  • Patent number: 8511943
    Abstract: A milling insert (1) for chip removing machining, has a positive basic geometry, including at least three main cutting edges (H1-H3) and three associated minor cutting edges (B1-B3), the milling insert (1) on the underside (L1) thereof being provided with at least two, mutually intersecting, sets of rectilinear grooves/notches, the sets of grooves/notches defining essentially pyramidal projecting parts (P), the sets of grooves/notches intersecting opposite side surfaces (S1-S6) of the milling insert (1). A face milling cutter equipped with such milling inserts is described. Characteristic of the milling insert (1) is that when the milling insert is seen in a planar view, the rectilinear direction (R1-R3) defined by each set of grooves/notches forms a right angle with the tangent of a minor cutting edge (B1-B3).
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: August 20, 2013
    Assignee: Seco Tools AB
    Inventor: Bjorn Gustavsson
  • Publication number: 20130156515
    Abstract: A cutting insert has polygonal first and second end surfaces which are connected by a peripheral side surface, each end surface defining first and second end planes, respectively. The peripheral side surface has first peripheral side portions alternated in the circumferential direction with second peripheral side portions. The first peripheral side portions are inverse copies of the second peripheral side portions. Each peripheral side portion includes first and second sub-faces which form different angles with the first and second end planes. The first and second sub-faces intersect one another between the first and second end planes to form a line which is parallel to the first and second end planes.
    Type: Application
    Filed: May 7, 2012
    Publication date: June 20, 2013
    Applicant: Iscar, Ltd.
    Inventors: Amir Satran, Evgeny Tulchinsky
  • Publication number: 20130149052
    Abstract: An upper surface of a cutting insert includes a first rake face and a second seating surface. A lower surface of the cutting insert includes a second rake face and a first seating surface. The cutting edge includes a first cutting edge portion formed at a crossing edge line portion between the first rake face and a flank face and a second cutting edge portion formed at a crossing edge line portion between the second rake face and the flank face. The first cutting edge portion and the crossing edge line portion between the first seating surface and the flank face are positioned opposite each other. The second cutting edge portion and the crossing edge line portion between the second seating surface and the flank face are positioned opposite each other.
    Type: Application
    Filed: February 4, 2013
    Publication date: June 13, 2013
    Applicant: TUNGALOY CORPORATION
    Inventor: Tungaloy Corporation
  • Patent number: 8430606
    Abstract: An indexable cutting insert has first and second side surfaces and a peripheral surface extending therebetween. The peripheral surface has identical peripheral faces, each divided into two identical first and second cutting sections. Each cutting section has a first cutting edge, a second cutting edge, a corner cutting edge which extends between the first and second cutting edges and a rake surface having a planar rake surface flat forming an engagement surface. The rake surface meets the first side surface at the first cutting edge. The rake surface flat meets the second side surface at a rake surface open edge. On each peripheral face, the two cutting sections are non-coplanar. Each two rake surface flats associated with first cutting sections converge in a direction along an insert axis and the cutting edges are raised above the rake surface flat.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: April 30, 2013
    Assignee: Iscar, Ltd.
    Inventor: Martin Zettler
  • Patent number: 8388272
    Abstract: A milling cutter includes a shank and upper portion with an insert pocket. The insert pocket includes a bottom surface, a radial support wall and an axial support wall. A cutting insert includes a hole extending from a bottom surface. A tapered pin includes a lower portion and a tapered upper portion. A spring engages the lower portion of the tapered pin and provides an upward biasing force on the tapered pin. A center axis of the tapered pin is closer to the radial support wall than a center axis of the hole of the cutting insert such that the tapered pin exerts pressure against the hole of the cutting insert to cause one of the side walls of the cutting insert to be forced against the radial support wall of the insert pocket when the cutting insert is mounted in the insert pocket.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: March 5, 2013
    Assignee: Kennametal Inc.
    Inventors: Ruy Frota De Souza Filho, Ronald Louis Dudzinsky, Kenneth George DeRoche
  • Publication number: 20130051938
    Abstract: A cutting tool has a cutting insert removably secured to a tool body by a fastening member. The cutting insert includes a clamping bore having at least two upper and at least two lower clamping portions intersecting a first and a second horizontal plane, respectively, the first and second horizontal planes being perpendicular to a central axis and spaced apart from each other, and the clamping bore being non-circular at cross-sections taken in the first and second horizontal planes. Upper and lower imaginary lines tangential to the at least two upper and the at least two lower clamping portions, respectively, form zero or acute first and second clamping angles with the central axis, the first and second clamping angles being different. Exactly two upper and exactly two lower clamping portions are in simultaneous clamping contact with an equal number of corresponding clamping zones on the fastening member.
    Type: Application
    Filed: May 7, 2012
    Publication date: February 28, 2013
    Applicant: Iscar, Ltd.
    Inventors: Amir Satran, Evgeny TULCHINSKY
  • Publication number: 20120321405
    Abstract: A grooving tool body for holding a number of inserts for use in forming one or more grooves in a wall of a bore when the tool body is rotated about a first axis and simultaneously circularly interpolated about a second axis. The tool body includes a generally cylindrical portion disposed generally about the first axis and having a first end and an opposite second end, the first end being structured to be mounted to a machine tool for simultaneously rotating the tool body about the first axis and circularly interpolating the second end about the second axis. The tool body further includes a number of pockets disposed at or about the opposite second end of the generally cylindrical portion. Each pocket of the number of pockets is structured to receive and couple therein a cutting insert for forming one or more grooves in wall of the bore.
    Type: Application
    Filed: June 14, 2011
    Publication date: December 20, 2012
    Inventor: MICHAEL ANTHONY WEISEL
  • Publication number: 20120257940
    Abstract: The present disclosure provides a cutter assembly (100), said cutter assembly (100) comprises a back plate (101) adapted to mount on a machine spindle, wherein said back plate (101) having stepped portion (201) on its surface. The stepped portion (201) of the back plate (101) comprises plurality of oblong slots (202) and locating surfaces (203) at predetermined locations in its outer circumference. A cutter ring (102) adapted mount on outer circumference of the stepped portion (201) of the back plate (101) and a fastening members (103) to connect said cutter ring (102) with the back plate (101).
    Type: Application
    Filed: April 4, 2012
    Publication date: October 11, 2012
    Applicant: KENNAMETAL INC.
    Inventors: Sharath Shankare Gowda, Krishna Prasad Vangipuram Ramaswamy, Shivanna
  • Publication number: 20120114434
    Abstract: A cutter-tooling assembly has a tool holder and a cutter. The tool holder has an inserted section and a through hole axially formed through the inserted section. The through hole has a fixing segment. The fixing segment has an inner surface and multiple recesses formed around the inner surface of the fixing segment at intervals. The cutter is inserted into the through hole of the tool holder and has a fixing end. The fixing end has an outer surface and multiple corners formed on the outer surface of the fixing end and abutting the recesses. Because the fixing segment has the multiple recesses which the corners of the cutter abut, the combination of the recesses and the corners can prevent a relative rotation between the tool holder and the cutter and make the cutter securely connected with the tool holder.
    Type: Application
    Filed: November 5, 2010
    Publication date: May 10, 2012
    Inventor: Chin-Chiu CHEN
  • Publication number: 20120039676
    Abstract: A cutting head (14) for a T-slot cutter (10) includes opposing cutting head top and intermediate surfaces (18, 20) extending perpendicular to a head rotation axis (A), and a head peripheral surface (22) extending therebetween. The cutting head (14) also includes cutting portions (24) located along the head peripheral surface (22) and a head protrusion (32). The head protrusion (32) extends from the cutting head intermediate surface (20) and includes a head torque-transfer portion (42). The cutting head (14) further includes a cutting head abutment surface (34), and a head bore (36) coaxial with the head rotation axis (A). The head bore (36) extends between, and opens out to, the cutting head top surface (18) and the head protrusion (32). The cutting head (14) also includes a head centering portion (40) distinct from the head torque-transferring portion (42) and located at an axial position different therefrom, along the head rotation axis (A).
    Type: Application
    Filed: August 11, 2011
    Publication date: February 16, 2012
    Applicant: Iscar, Ltd.
    Inventor: Amir Marshansky
  • Patent number: 8113746
    Abstract: A cutting insert of the present invention includes a side face having an upper concave portion which is located between an upper face and a lower face and extends up to the upper face, and a plurality of divided upper cutting edges which are located at the intersection of the upper face and the side face, and are divided by the upper concave portion. Each of these divided upper cutting edges includes a first end and a second end, and is inclined being closer to the lower face from the first end toward the second end. The plurality of divided upper cutting edges include a first divided upper cutting edge and a second divided upper cutting edge adjacent to each other.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: February 14, 2012
    Assignee: Kyocera Corporation
    Inventor: Kenichirou Koga
  • Patent number: 8100037
    Abstract: A milling head for use in conjunction with a rotary milling tool that is utilized to perform an operation on a tube, preferably of a tube bank or tube wall of a boiler system. The milling head is utilized to remove material or film from the outer diameter of a tube, or place a bevel on a tube end, or both. In one embodiment, the milling head includes at least one outer diameter milling element and at least one bevel milling element that are adjustable in relation to each other as well as the milling head body. Methods for milling a tube are also described.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: January 24, 2012
    Assignee: H&S Tool, Inc.
    Inventor: J. Randall Hall
  • Patent number: 8100610
    Abstract: An indexable insert for a milling tool that includes at least one mounting surface having a through bore for fixing the insert to a rotatable tool, a rounded cutting edge defined by at least one cutting face and a lateral surface, and the at least one cutting face being arranged on a lateral side of the insert and extending from a base. The base is angled with respect to the at least one mounting surface. This abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: January 24, 2012
    Assignee: Boehlerit GmbH & Co. KG.
    Inventor: Peter Kirchberger
  • Publication number: 20110305533
    Abstract: A milling tool for working non-metal materials, in particular wood, engineered wood, and plastic, includes a carrier body, a plurality of cutting elements, which can be inserted into said body on the periphery in a corresponding number of openings extending in the radial direction and can be screwed to the carrier body by way of a bore and which have a plate-shaped and in the cross-section a substantially triangular-shaped design and on a side edge are provided with a blade. The cutting element includes: a) the region located opposite of the blade is rounded, b) a groove extending substantially at a right angle to the blade is provided in the bottom, c) the bore divides the groove preferably into two regions.
    Type: Application
    Filed: January 6, 2010
    Publication date: December 15, 2011
    Applicant: LEITZ GMBH & CO. KG
    Inventors: Andreas Kisselbach, Jurgen Graef, Heiko Ehrensperger
  • Patent number: 8057132
    Abstract: An indexable milling insert, including an upperside, an underside parallel to an imaginary reference plane, and two cutting edges. Each cutting edge includes a cutting edge line and is formed between a chip surface included in the upperside and a first clearance surface extending between the upperside and the underside, the first clearance surface forming an acute, nominal first clearance angle (?) with a normal to the reference plane. Each cutting edge includes a main edge, which is at least partly convexly curved as viewed in plane elevation from above, and which extends from an initial end, which determines the maximal cutting depth of the milling insert, to a corner edge having a radius of curvature that is smaller than the radius of curvature of the main edge, the main edge rising in the direction from the initial end toward the corner edge such that the distance thereof to the underside successively increases in the direction.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: November 15, 2011
    Assignee: Sandvik Intellectual Property AB
    Inventors: Jan Johansson, Anders Liljerehn
  • Patent number: 7997836
    Abstract: An indexable type cutting tool includes a drill having a shank and a drill body which extends from the shank, the drill body being defined with body flutes, and being formed with an insert seat which has seat side surfaces and a seat bottom surface and body flank surfaces and body thinning surfaces; a drill insert fitted into the insert seat of the drill body, having cutting edges and an insert bottom surface which is brought into close contact with the seat bottom surface, formed with insert flutes and insert side surfaces which are brought into close contact with the seat side surfaces, and defined with a through-hole which passes through the insert side surfaces; and a fastening screw for fastening the drill insert fitted into the insert seat to the drill.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: August 16, 2011
    Assignee: Korloy Inc.
    Inventors: Young-Heum Kim, Joo-Oh Kim, Kwan-Hee Lee, Hak-Kyu Kim
  • Patent number: 7980278
    Abstract: A brush cutting head having internally housed drive and bearing assemblies which can be easily attached/detached from the brush cutter housing without having to dismantle the drive assembly for improved productivity. The brush cutting head includes a hollow support body, a drive and bearing assembly housed at least partially within the hollow of the support body, a drive block mounted to extend within the hollow of the support body, and a motor provided with a torque transmitting driveshaft.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: July 19, 2011
    Assignee: Usitech Nov Inc.
    Inventors: Etienne Labbe, Rene Boivin
  • Patent number: 7967044
    Abstract: The present invention relates generally to brush cutting heads, and more specifically, to protective guard members for cutting tooth assemblies mounted on brush cutting heads. A brush cutting head includes a support body having a first end, an opposed second end and an intermediate portion extending therebetween. The intermediate portion has an outer surface. A plurality of collars is mounted to the support body at spaced intervals along the intermediate portion with each collar extending outwardly from the outer surface. The brush cutting head further also has a plurality of cutting teeth assemblies carried on the outer surface of the support body. Each cutting tooth assembly is associated with at least one collar. Also provided is at least one guard member for protecting at least one cutting tooth of the plurality from impacts with hard objects. The at least one guard member is carried on one of the collars with at least a portion thereof projecting beyond the outermost edge of the one collar.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: June 28, 2011
    Assignee: Usitech Nov Inc.
    Inventors: Etienne Labbe, Rene Boivin
  • Publication number: 20110103905
    Abstract: A round cutting insert with an anti-rotation feature. The round cutting insert includes a plurality of projections formed on a first surface and another plurality of projections formed on an opposing surface. The round cutting insert is reversible and indexable. The round cutting insert is removably received in an insert receiving pocket in a tool body wherein the insert receiving pocket includes a plurality of dimples for receiving one of the plurality of first projections or the plurality of second projections. This arrangement prevents rotation of the round cutting insert while mounted in the insert receiving pocket.
    Type: Application
    Filed: November 3, 2009
    Publication date: May 5, 2011
    Applicant: Kennametal Inc.
    Inventors: Lewis Ray Morrison, Kumar Reddy Mylavaram Nikhilesh, Thomas Jerry Long, Jeffrey Francis Kovac, Suresh Mali
  • Publication number: 20110097165
    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: Application
    Filed: June 13, 2008
    Publication date: April 28, 2011
    Applicant: TaeguTec Ltd
    Inventors: Chang Hee Choi, Chang Gyu Park
  • Publication number: 20110038677
    Abstract: Disclosed is a cutting tool for milling works which employs a cutting insert. The cutting tool for milling works employs a cutting insert. By forming a concave nick cutting edge on the lateral surface of the cutting insert, it may cut a chip in a short form in case of high depth of cutting to shorten the effective cutting edge, so as to reduce a friction and a cutting resistance, thereby increasing the life span of the cutting tool as well as to facilitate a chip disposal and reduce the cutting resistance, so as to increase a feed rate at a high depth of cutting, thereby enhancing the productivity of the cutting works. By forming concave recesses on the upper and lower surfaces of the cutting insert it may reduce the cutting resistance between the chip being short cut by the concave nick cutting edge and the upper and lower surfaces.
    Type: Application
    Filed: January 6, 2010
    Publication date: February 17, 2011
    Inventors: Wook Jung Sung, Ki Chan Nam
  • Publication number: 20110013997
    Abstract: The invention related to a milling tool (1) for machining work pieces, comprising at least one blade that is arranged in a radial manner on the milling head (2) that is rotationally mounted on a rotationally symmetrical designed Y-axis (4) on the milling head. According to the invention, said indexable cutting insert (2) is arranged below a tolerance play (7) in a freely rotating manner on the free end (8) of a mounting pin (9) secured in a detachable manner to the milling head (3) below the clamping seat. The freely rotationally mounted indexable cutting insert (2) is mounted or surrounded on the entire surface of the rear side (10) and on certain pats on the front side (11) such that the mounting pin (9) does not detach itself from the material (12) of the milling head (3).
    Type: Application
    Filed: March 17, 2009
    Publication date: January 20, 2011
    Inventor: Franz Josef Pokolm
  • Publication number: 20110013996
    Abstract: An indexable cutting insert (1) for a milling tool (2) for machining work pieces, said indexable cutting insert being rotationally mounted in a radial manner on a milling head (3), on a rotationally symmetrical design ed Y-axis (4) on the milling head (3). According to the invention, said indexable cutting insert (2) is arranged below a tolerance play (5) in a freely rotating manner on the free end (6) of a mounting pin (7) secured in a detachable manner to the milling head (3) below the clamping seat. The freely rotationally mounted indexable cutting insert (1) is mounted or surrounded on the entire surface of the rear side (9) and on certain parts on the front side (10) such that the mounting pin (7) does not detach itself from the material (9) of the milling head.
    Type: Application
    Filed: March 17, 2009
    Publication date: January 20, 2011
    Inventor: Franz Josef Pokolm
  • Publication number: 20110008115
    Abstract: A boring bit has a head, a blade assembly and a blade. The head has a mounting recess and two holding protrusions. The mounting recess is formed in the head and has a restricting surface and a threaded hole. The holding protrusions are formed on the restricting surface and each has two oblique restricting faces. The blade assembly is attached to the head and has a mounting base. The mounting base is mounted in the mounting recess and has an inner surface, a through hole and a guiding channel. The inner surface abuts with the restricting surface. The through hole is formed through the mounting base and aligns with the threaded hole. The guiding channel is formed in the mounting base, is mounted around the holding protrusions and has two abutting surfaces abutting the oblique restricting faces of the holding protrusions. The blade is detachably mounted on the blade assembly.
    Type: Application
    Filed: July 13, 2009
    Publication date: January 13, 2011
    Inventor: Chin-Chiu CHEN
  • Publication number: 20100316453
    Abstract: An adjustment mechanism allows for bidirectional adjustment of the position of a cutting insert retained in a cutting tool by a securing screw. The adjustment mechanism includes an adjustment screw, a slider, the cutting insert and the securing screw. The rotation of the adjustment screw in opposite senses results in the bidirectional axial adjustment of the position of the cutting insert, while the securing screw is fixed in and retains the cutting insert.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 16, 2010
    Applicant: Iscar, Ltd.
    Inventors: Alexander Bronshteyn, Alexander Koifman, Amir Satran
  • Patent number: 7832435
    Abstract: A cutter head of a planer machine includes a rotatable mount body having opposite flat mount and counter regions that are symmetrical to each other, a cutter blade disposed to abut against the flat mount region so as to enable a cutting edge to extend beyond a lateral end of the mount region, a press member having a tightened body which is tightened against the mount region, and a pressing strip which is brought to press the cutter blade against the mount region, and a counterweight disposed on the counter region so as to balance the combined weights of the cutter blade and the press member for smoothing the rotation of the mount body.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: November 16, 2010
    Inventor: Chin-Yuan Liu
  • Patent number: 7810531
    Abstract: The present invention relates to a brush cutting head for a brush cutter. The brush cutter head includes a cylindrical support body that has a first end, an opposed second end and an intermediate portion extending therebetween. The intermediate portion has a curved surface that defines the circular cross-section of the cylindrical support body. A plurality of collars is mounted to the cylindrical support body at spaced intervals along the intermediate portion. Each collar extends radially from the curved surface of the cylindrical support body. Additionally, each collar cooperates with an adjacent collar to define a mounting station between the adjacent collars. The brush cutter head further includes a plurality of cutting tooth assemblies carried on the outer surface of the cylindrical support body. Each cutting tooth assembly has a cutting tooth for placement within the mounting station and a mounting assembly engageable with the adjacent collars to secure the cutting tooth in the mounting station.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: October 12, 2010
    Inventor: Etienne Labbé