Plural Simultaneously Usable Separable Tools In Common Seat Or Common Clamp Actuator For Plural Simultaneously Usable Tools Patents (Class 407/35)
  • Patent number: 11027343
    Abstract: This disclosure relates to a cutting tool, having a main body, a cutting head, which is joined to the free end of the main body and is formed, by primary shaping, as a sintered piece provided with at least one cutting edge, and a cooling lubricant feed, which is led through the main body axially and which has a cooling lubricant distributor inserted into the cutting head for redirecting cooling lubricant into the region of the at least one cutting edge. According to this disclosure, a plurality of protruding spacers for keeping a gap clear with respect to the cooling lubricant distributor and/or the main body are sintered on a supporting surface of the cutting head as primary shaped elements.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: June 8, 2021
    Assignee: KOMET GROUP GMBH
    Inventors: Manuel Mayer, Niklas Kramer
  • Patent number: 10525539
    Abstract: A compression milling cutter includes a shank and a front cutting portion that terminates at a leading end of the milling cutter. The front cutting portion has a first circumferential row of one or more insert receiving pockets proximate a leading end of the milling cutter, and a second circumferential row of one or more insert receiving pockets, each insert receiving pocket configured to receive a respective indexable cutting insert. The cutting insert mounted in the first circumferential row has a positive axial rake angle, A, and the indexable cutting insert mounted in an insert pocket of the second circumferential row has a negative axial rake angle, B. Because of the different axial rake angles, chips generated during a machining operation flow in opposite directions, thereby creating a compression zone disposed between the first and second circumferential rows. This compression zone replicates the cutting action of a solid end mill, particularly when machining fiber reinforced plastic materials.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: January 7, 2020
    Assignee: KENNAMETAL INC.
    Inventors: Joseph Slusarcyk, Thomas J. Long, II, Tim J. Marshall, Ronald Louis Dudzinsky
  • Patent number: 10213851
    Abstract: A cutting tool including: a tool body (2) provided with an insert support seat (5) including a major seat surface (5a) that supports a bearing surface of a cutting insert, a plurality of seat side surfaces (5b, 5c) that supports side surfaces of the cutting insert at different positions, and a thinned portion (5d) continuous with the major seat surface and the seat side surfaces; and a cutting insert attached to the insert support seat, wherein a ridge at a position where the major seat surface and the thinned portion intersect, a ridge at a position where the seat side surface and the thinned portion intersect, and a ridge at a position where the thinned portions continuous with each other intersect are each formed of a convex arc curved surface.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: February 26, 2019
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Yusuke Koike, Kouki Matsubara, Katsuya Nakakihara, Atsuhiko Maeta
  • Patent number: 10155271
    Abstract: A cutting tool including: a tool body (2) provided with an insert support seat (5) including a major seat surface (5a) that supports a bearing surface of a cutting insert, a plurality of seat side surfaces (5b, 5c) that supports side surfaces of the cutting insert at different positions, and a thinned portion (5d) continuous with the major seat surface and the seat side surfaces; and a cutting insert attached to the insert support seat, wherein a ridge at a position where the major seat surface and the thinned portion intersect, a ridge at a position where the seat side surface and the thinned portion intersect, and a ridge at a position where the thinned portions continuous with each other intersect are each formed of a convex arc curved surface.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: December 18, 2018
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Yusuke Koike, Kouki Matsubara, Katsuya Nakakihara, Atsuhiko Maeta
  • Patent number: 10065254
    Abstract: A cutter head (40) having cutting blade positioning slots (50, 52) wherein a portion of the positioning slots accommodate cutting blades (42) for right-hand cutting and another portion of the positioning slots accommodate cutting blades (46) for left-hand cutting.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: September 4, 2018
    Assignee: THE GLEASON WORKS
    Inventor: Joseph A. Courtney
  • Patent number: 9789550
    Abstract: A blade positioning structure of a disposable milling cutter includes a cutter body and a disposable blade. The cutter body is peripherally provided with a blade seat. By passing a screw through the disposable blade and the blade seat, the disposable blade is locked to the blade seat. The blade seat has a blade seat surface and a sidewall; the blade seat surface has a groove; the disposable blade has a bottom surface provided with a projection corresponding in shape to the groove; and when the disposable blade is locked to the blade seat, the blade seat surface and the groove of the latter lie respectively and tightly against the bottom surface and the projection of the former.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: October 17, 2017
    Inventor: Hsin-Tien Chang
  • Patent number: 9770769
    Abstract: Described herein is an orbital drilling system that includes an orbital drilling machine and a cutter. The orbital drilling machine includes a spindle and an eccentric rotation mechanism. The spindle is rotatable about a cutter axis. The eccentric rotation mechanism is coupled to the spindle and configured to orbit the spindle about an orbital axis, offset from the cutter axis. The cutter is co-rotatably coupled to the spindle and comprises a plurality of cutting edges, collectively defining a cutting diameter of the cutter. The cutting diameter of the cutter is adjustable.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: September 26, 2017
    Assignee: The Boeing Company
    Inventors: Wesley E. Holleman, Nicholas R. Farrell
  • Patent number: 9636759
    Abstract: A crankshaft milling cutter has a disc-shaped main body rotatable about an axis perpendicular to the disc plane and on the periphery recesses for receiving indexable cutting inserts for removing an allowance on the crankshaft blank. At least some of the recesses are open both in the radial direction and in at least one axial direction of the main body and a first group of said recesses receives cutting inserts designed for removing the allowance on an oil collar adjoining a shaft journal. To provide a crankshaft milling cutter able to meet the increasing requirements with regard to dimensional and positional tolerances placed on a crankshaft milling cutter and at the same time reduces the time needed for fine adjustment of the crankshaft milling cutter, only some of the first group of recesses has devices for setting the axial position of the indexable cutting insert received in each case therein.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: May 2, 2017
    Assignee: Walter AG
    Inventor: Rolf Buob
  • Patent number: 9073132
    Abstract: Disclosed is a PCD milling cutter for lens processing. The PCD milling cutter includes a shaft having one axial end portion rotatably coupled with a driving unit of a milling unit for lens processing, a rotary head coupled with the axial end portion of the shaft and having a plurality of installation protrusions which protrude outward along a circumference thereof about a rotation center and have outer circumferential surfaces rounded in an axial direction of the shaft, and a plurality of PCD tips coupled with installation surfaces of the installation protrusions positioned in a rotation direction, provided at outer end portions thereof with rounded cutting blades sharply processed in the axial direction of the shaft, and provided in inner end portions thereof, which are opposite to the cutting blades, with cutting grooves formed in a concave shape to increase a welding force.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: July 7, 2015
    Inventors: In-Sun Cha, Soo-Il Cha, Dong-Bin Jang
  • Patent number: 9044813
    Abstract: A hexahedral insert has top and bottom faces and two pairs of opposing side faces with main cutting edges formed on the borders of the top and bottom faces to the side faces and a screw hole passing through each central portion of the top and bottom faces. The top and bottom faces are flat planes parallel to each other; each of the side faces consecutively from top to bottom includes an upper land portion, an upper inwardly-inclined portion, a flat support surface, a lower inwardly-inclined portion, and a lower land portion. Each of two adjacent side faces has a corner surface therebetween which forms corner edges on the borders to the top and bottom faces. The cutting insert enhances the cutting power by reducing cutting resistance and prevents scratches on a machined surface.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: June 2, 2015
    Assignee: TaeguTec, Ltd.
    Inventors: Chang Hee Choi, Chang Gyu Park, Jae Wook Lee
  • Patent number: 8882403
    Abstract: The cutting insert carrier, in particular for a face milling cutter (2) comprises a tool basic body (4), having a multiplicity of insert seats (5), in which cutting inserts (6) are received. Rotatably fastened to the tool basic body (4) is a setting element, which is realized, in particular, as a curved ring (8) and which has circumferential cams (10), by means of which the clamping levers (12) are actuated for the purpose of fastening the cutting inserts (6) in a locking manner. The setting element (8) enables all clamping levers (12) to be actuated jointly, at the same time, such that all cutting inserts (6) are simultaneously released or locked in their insert seats (5). As a result, the assembly and setup time for insert changing is reduced significantly in comparison with conventional systems.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: November 11, 2014
    Assignee: Kennametal Inc.
    Inventor: Uwe Hobohm
  • Patent number: 8827602
    Abstract: A tool holder having a cutting insert comprising an upper face having a pair of protruding surfaces, i.e. an abutment surface for clamping of the insert by means of a screw in a tool holder, and a deflection surface for deflecting chips away from the screw.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: September 9, 2014
    Assignee: Safety
    Inventor: Richard Fouquer
  • Patent number: 8807884
    Abstract: Insert pockets of tool holders configured to accommodate multiple differently-shaped cutting inserts are disclosed. Cutting tool holders and cutting tool systems are also disclosed.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: August 19, 2014
    Assignee: Kennametal Inc.
    Inventors: X. Daniel Fang, Jean-Luc Dufour, David J. Wills
  • Publication number: 20140205387
    Abstract: A milling tool is equipped with milling inserts, below which there are disposed shim plates, the primary function of which is to protect the basic body of the tool in the event of insert breakdowns. The shim plate is formed with a protuberance, in which an auxiliary cutting edge is included, which, in the assembled state of the tool, is located along an inactive cutting edge, which is situated radially inside an active chip removing cutting edge. By means of the auxiliary cutting edge, the milling tool can be utilized for ramping operations without risk of the inactive cutting edge of the milling insert being damaged.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 24, 2014
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Anders Norstedt, Ulrik SUNNVIUS
  • Patent number: 8647027
    Abstract: A cutting insert for mounting in a socket on an insert holder of a milling cutter. The cutting insert has opposing top and bottom surfaces and a peripheral surface extending therebetween, forming one or two cutting edges. The peripheral surface has a front arcuate surface and a rear surface. The rear surface has a protuberance that extends in a direction away from a central region of the front surface. The protuberance is located in the socket. The socket includes a first socket side abutment surface for providing primarily axial support for the cutting insert against cutting forces acting in an axial rearward direction during a milling operation.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: February 11, 2014
    Assignee: Iscar, Ltd.
    Inventor: Yuri Men
  • Patent number: 8465233
    Abstract: A slot-milling tool includes a slot-milling insert to be on-edge mounted to a toolholder of the slot-milling tool. The insert includes a first side surface, a second side surface, and a plurality of edge surfaces between the first and second side surfaces, each edge surface intersecting with another edge surface at a corner and forming a cutting edge. The first and second side surfaces each have a side insert supporting surface for abutting against an abutment surface in a toolholder, and the insert has reflective symmetry about a central plane extending through the edge surfaces midway between the first and second side surfaces. A chipbreaker is provided on each edge surface and corresponds to each cutting edge, and each chipbreaker includes a recess beneath the cutting edge and a portion projecting toward the cutting edge, the projecting portion defining first and second chip deflecting recesses between the projecting portion and the first and second side surfaces, respectively.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: June 18, 2013
    Assignee: Seco Tools AB
    Inventor: Christer Ejderklint
  • Patent number: 8388269
    Abstract: A throw-away tip is mounted on a first tip mounting seat of a pin mirror cutter. In the throw-away tip, cutting edges are formed at intersecting ridgeline parts between a pair of oppositely disposed long side faces of a substantially trapezoidal flat-plate-shaped tip body, and upper and lower faces of the tip body. A thickness direction of the tip body is approximately aligned with a radial direction of the cutter body to provide curved edges formed in acute corner parts of the tip body for cutting. The tip is mounted on a second tip mounting seat of the pin mirror cutter such that the thickness direction of the tip body is approximately aligned with an axial direction of the cutter body to provide curved edges formed in obtuse corner parts of the tip body for cutting.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: March 5, 2013
    Assignee: Mitsubishi Materials Corporation
    Inventors: Syoji Takiguchi, Motoshi Shirai, Toshiyoshi Watanabe
  • Publication number: 20120263547
    Abstract: The cutting insert carrier, in particular for a face milling cutter (2) comprises a tool basic body (4), having a multiplicity of insert seats (5), in which cutting inserts (6) are received. Rotatably fastened to the tool basic body (4) is a setting element, which is realized, in particular, as a curved ring (8) and which has circumferential cams (10), by means of which the clamping levers (12) are actuated for the purpose of fastening the cutting inserts (6) in a locking manner. The setting element (8) enables all clamping levers (12) to be actuated jointly, at the same time, such that all cutting inserts (6) are simultaneously released or locked in their insert seats (5). As a result, the assembly and setup time for insert changing is reduced significantly in comparison with conventional systems.
    Type: Application
    Filed: April 11, 2012
    Publication date: October 18, 2012
    Applicant: Kennametal Inc.
    Inventor: Uwe Hobohm
  • Patent number: 7963729
    Abstract: A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: June 21, 2011
    Assignee: Kennametal Inc.
    Inventors: Paul D. Prichard, Linn R. Andras
  • Patent number: 7938599
    Abstract: A throw-away tip is mounted on a first tip mounting seat of a pin mirror cutter. In the throw-away tip, cutting edges are formed at intersecting ridgeline parts between a pair of oppositely disposed long side faces of a substantially trapezoidal flat-plate-shaped tip body, and upper and lower faces of the tip body. A thickness direction of the tip body is approximately aligned with a radial direction of the cutter body to provide curved edges formed in acute corner parts of the tip body for cutting. The tip is mounted on a second tip mounting seat of the pin mirror cutter such that the thickness direction of the tip body is approximately aligned with an axial direction of the cutter body to provide curved edges formed in obtuse corner parts of the tip body for cutting.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: May 10, 2011
    Assignee: Mitsubishi Materials Corporation
    Inventors: Syoji Takiguchi, Motoshi Shirai, Toshiyoshi Watanabe
  • Publication number: 20110103903
    Abstract: A tool for chip removing machining, including a primary tool part and a secondary tool part. The primary tool part includes a primary connecting surface, an opposite surface, a recess that extends from the primary connecting surface toward the opposite surface, and a wall section between a bottom surface of the recess and the opposite surface. The secondary tool part includes a secondary connecting surface, a protuberance that extends from the secondary connecting surface and, in a mounted state, into the recess, the protuberance having an end surface that, in the mounted state, faces the bottom surface of the recess. A shaft part is for fixing in a machine tool. A fastening element, which, by a contractive force in the mounted state, connects the wall section with the protuberance. A center axis extends in a longitudinal direction of the tool through the primary tool part, the recess, the secondary tool part, the protuberance, and the shaft part.
    Type: Application
    Filed: October 25, 2010
    Publication date: May 5, 2011
    Applicant: Sandvik Intellectual Property AB
    Inventor: Sjöö STURE
  • Patent number: 7794182
    Abstract: An indexable milling insert includes opposite top and bottom sides between which a peripheral clearance surface extends, and two opposite cutting edges formed in the transition between the top side and the clearance surface. Each of the cutting edges includes a substantially straight portion connected with a straight section of the clearance surface, and further includes a curved portion connected with a convexly arched section of the clearance surface. A coupling including one or more male- and/or female-like engagement members is located along said clearance surface. Furthermore, the milling insert may be used with a shim plate for attachment to a milling tool.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: September 14, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventors: Ralf Lehto, Lars-Gunnar Wallström, Göran Pantzar, Per Blomstedt
  • Patent number: 7736099
    Abstract: A cutting tool assembly adapted to be coupled to a cutter head for manufacture of a gear. The cutting tool assembly includes a cutting insert and a holder adapted to couple the cutting insert to the cutting head. The holder includes a pocket defined by a back surface and at least one lip member that provides a force directed against the cutting insert toward the back surface to thereby retain the cutting insert within the pocket during cutting operations.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: June 15, 2010
    Assignee: Cole Carbide Industries, Inc.
    Inventors: John M. Cole, Robert D. Kranker
  • Patent number: 7648313
    Abstract: A tube end rotary milling head with cylindrical cutting pieces removably secured to the milling head by forces exerted by the material being cut and by friction without any separate securing elements.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: January 19, 2010
    Assignee: Esco Technologies, Inc.
    Inventor: David Legge
  • Patent number: 7625156
    Abstract: A cylindrical cutter is disclosed of the type that includes a milling body rotatable around a geometrical axis having an envelope surface extending rearward from a end, in which surface a plurality of tangentially spaced flutes are formed, which separately includes a plurality of axially spaced-part insert pockets for releasably mounted cutting inserts, the active edges of which are partially overlapping each other, more precisely in imaginary, radially extending overlapping planes.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: December 1, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventor: Göran Pantzar
  • Patent number: 7566192
    Abstract: An axial seating pin contacting and supporting an insert attached to a cutting tool body. The axial seating pin eliminates the need for forming an axial wall on the body of the cutting tool and contributes to the life of the cutting tool by providing a replaceable axial seating pin. The axial seating pin has a shank that slides into an aperture on the tool body and is then held to the body using a fastener.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: July 28, 2009
    Assignee: Kennametal Inc.
    Inventors: James M. Waggle, Kevin M. Gamble, Dennis W. McNamara
  • Publication number: 20090185878
    Abstract: A surfacing and contouring cutter for high-speed machining of parts made of composite material, the cutter having a cut end portion with teeth (20) that are regularly spaced apart around the axis (14) of the cutter and that are separated from one another by swarf grooves, the main cutting edge of each tooth being connected to the secondary cutting edge (S2) of the tooth via a corner (24) of convex rounded shape with a radius of curvature greater than about 1.5 mm, and the secondary cutting angle lying in the range about 5° to 15°.
    Type: Application
    Filed: January 16, 2009
    Publication date: July 23, 2009
    Applicant: SNECMA
    Inventor: Claude Roger Robert TURRINI
  • Patent number: 7556458
    Abstract: A tool includes a shaft and a blade support which is disposed in a removable manner on the face of the shaft, preferably embodied as a drill bit. One end of the blade support is provided with a transversal rib that extends beyond an end face. It can be inserted into an accommodating device of the shaft, which is delimited by a planar counterface, and can be clamped by clamping screws. In order to ensure sufficient torque transmission even with small bore diameters, the accommodating device is provided with two entraining sections that are separated by a central gap, are disposed in a twofold rotationally symmetric manner relative to the tool axis, and protrude from the counterface of the shaft essentially parallel to the axis. Each entraining section encompasses an axially parallel entraining area for an adjacent transversal rib section, which points in the direction of rotation of the shaft.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: July 7, 2009
    Assignee: Komet Group Holding GmbH
    Inventors: Juergen Heilmann, Uwe Kretzschmann, Peter Leuze
  • Publication number: 20090169312
    Abstract: A milling cutter tool including a basic body and a replaceable cutting body. The basic body includes an envelope surface and two opposite ends, between which a geometrical center axis (C1) extends around which the basic body is rotated in a predetermined direction of rotation. The replaceable cutting body includes a pair of opposite main surfaces, one of which in a mounted state forms an underside and the other one of which forms an upperside, a pair of opposite sides, and a pair of opposite end surfaces. The cutting body further includes a set of teeth which are situated with a uniform partition along one of the pair of opposite sides of the cutting body, each of the teeth including a chip surface formed adjacent to a cutting edge from which the tooth extends between a pair of flanks along a length extension which is orientated at an angle to the underside of the cutting body.
    Type: Application
    Filed: December 9, 2008
    Publication date: July 2, 2009
    Applicant: Sandvik Intellectual Property AB
    Inventor: Sture SJOO
  • Publication number: 20090162151
    Abstract: A milling cutter tool, including a basic body and a cutting body. The basic body includes an envelope surface and two opposite ends between which a geometrical center axis extends around which the basic body is rotated. The cutting body is fixed in a seating of the basic body and includes a pair of opposite main surfaces, a pair of opposite sides, and a pair of opposite end surfaces between which an imaginary, axial neutral plane extends situated halfway between the two main surfaces. The cutting body includes a set of chip removing teeth, which protrude from the envelope surface of the basic body, and are arranged in a row one after the other along at least one of the pair of opposite sides of the cutting body. Each one of the teeth includes a chip surface formed adjacent to a cutting edge from which the tooth extends between a pair of flanks along a length extension which is orientated at an angle (?) to the neutral plane.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 25, 2009
    Applicant: Sandvik Intellectual Property AB
    Inventor: Sture SJOO
  • Publication number: 20090136303
    Abstract: A tool system having at least two tool parts with opposed end contact surfaces which bear against one another in the region of an interface. The contact surfaces have a tooth system thereon including intermeshing teeth and recesses. The tooth system is shaped and positioned such that the contact surfaces can be fitted together only in at least one defined rotary angle position with respect to the center axis of the tool parts.
    Type: Application
    Filed: January 9, 2007
    Publication date: May 28, 2009
    Inventors: Dieter Kress, Friedrich Häberle
  • Patent number: 7527696
    Abstract: A debris removal tool is generally provided with a head unit having a base plate, at least one cutting tooth and a drive unit for rotating the base plate. A flex plate may be provided for biasing the base plate with respect to an axis of rotation. The cutting teeth may be removably and pivotably coupled with the base plate. An elongated handle may be provided for use with the head unit and may be pivotably secured there too. Rechargeable and disposable power sources may be used with the drive unit. Various embodiments that incorporate functional grips and brushes are also disclosed.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: May 5, 2009
    Assignee: CMK Engineering Inc.
    Inventor: Alvin A. Aus
  • Publication number: 20090092451
    Abstract: A cutting tool holder adapted for mounting thereon a cutting insert having a top face, a bottom face and formed with an insert bore having an inner surface extending between the top and the bottom face. The holder comprises a seat defined by a bottom surface and at least one side wall angled to the bottom surface, a seat bore with a bore axis having an open end at the bottom surface of the seat, and a securing mechanism for securing the cutting insert in the seat. The securing mechanism comprises a securing pin received within the seat bore and having a body with an outer surface extending between a proximal end and a distal end of the body and defining a pin axis therealong.
    Type: Application
    Filed: December 10, 2008
    Publication date: April 9, 2009
    Applicant: No Screw Ltd
    Inventor: Gershon Harif
  • Patent number: 7484541
    Abstract: A cutting tooth for use with a stump cutting apparatus wherein the cutting tooth has a removable and replaceable cutting bit. The cutting bit is removably and nonrotatably secured to a head of an elongated shank with the shank secured to a mounting block or pocket of a stump cutting tool. A support member having an indexing surface is also removably and nonrotatably secured to the head of the elongated shank. Accordingly, the support member enables indexing the cutting bit to expose and use a plurality of cutting edges located on the periphery of the cutting bit.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: February 3, 2009
    Inventor: Kevin J. Green
  • Publication number: 20080304924
    Abstract: An indexable end-milling insert including an underside, an upperside and a plurality of cutting edges that are formed between the upperside and a number of clearance sides and that include a chip-removing main edge as well as a surface-wiping wiper edge. The cutting insert has a square basic shape and includes four main edges and four wiper edges that are countersunk to a lower level than the main edges. The wiper edge is included in a lip projecting in relation to a secondary clearance surface and has a tertiary clearance surface, which laterally transforms into a primary clearance surface. The primary clearance surface has a width that decreases from the two opposite ends thereof toward a section having a smallest width therebetween.
    Type: Application
    Filed: May 2, 2008
    Publication date: December 11, 2008
    Inventors: Tord Engstrom, Goran Pantzar, Patrik Svedberg, Magnus Astrom
  • Publication number: 20080260476
    Abstract: A throwaway insert enabling the use of a holder for a long period and having excellent chip evacuation is provided. The throwaway insert is formed in a substantially polygonal plate shape and includes a rake face formed on an upper surface thereof a relief face formed on a side surface thereof a main cutting edge formed along a ridge representing an intersection of the rake face and the relief face, which is divided into a plurality of main cutting edge divisions by at least one groove formed on the relief face, and a projection formed so as to protrude from the rake face in correspondence with each of the main cutting edge divisions.
    Type: Application
    Filed: September 29, 2005
    Publication date: October 23, 2008
    Applicant: KYOCERA CORPORATION
    Inventor: Takuya Ishida
  • Publication number: 20080240870
    Abstract: The invention relates to a milling head for milling chamfers, especially for a mobile chamfer miller, comprising successive seats for blanking dies, said seats having a position in which the blanking dies with a leading edge angle of between 40 and 75° operate respectively on average with a positive effective cutting angle of at least 6° and a clearance angle of at least 6°, and are provided for a border comprising blanking dies with a staggered arrangement of the cutting edges, such that respectively only one cutting edge length of 15 mm, preferably 12 mm, at the most, is active. Said measures increase the cutting performance of the milling head. The reduced cutting edge length can be formed on a long blanking die instead of using a shorter blanking die, in such a way that the cutting edge is interrupted by cavities or other e.g. flat triangular recesses on the surface of the blanking die. The staggered arrangement is then comparatively small.
    Type: Application
    Filed: March 30, 2005
    Publication date: October 2, 2008
    Inventor: Stephan Rieth
  • Publication number: 20080240871
    Abstract: The invention relates to a cutting insert having an essentially parallelepiped-shaped basic body with two larger spaced-apart longitudinal surfaces (10,11) which are connected to one another by two smaller transverse surfaces (12, 13) and two smaller longitudinal surfaces (14) designed as rake faces, wherein the smaller longitudinal surfaces (14) form with the adjacent surfaces a respective, encircling, closed cutting line which forms the cutting edges and rounded-off cutting corners, and the larger longitudinal surface (10, 11) merges on both sides via respective rounded-off edges into the smaller transverse surface (12, 13), and one of the rounded-off cutting corners is designed so as to project relative to a basic shape which is determined by the cutting lines, on both sides, of the larger longitudinal surfaces (10, 11) with the smaller longitudinal surfaces (14).
    Type: Application
    Filed: August 22, 2006
    Publication date: October 2, 2008
    Inventors: Jurgen Thomas Bar, Jochen Hecht
  • Patent number: 7419336
    Abstract: An indexable milling insert includes opposite top and bottom sides between which a peripheral clearance surface extends, and two opposite cutting edges formed in the transition between the top side and the clearance surface. Each of the cutting edges includes a substantially straight portion connected with a straight section of the clearance surface, and further includes a curved portion connected with a convexly arched section of the clearance surface. A coupling including one or more male- and/or female-like engagement members is located along said clearance surface. Furthermore, the milling insert may be used with a shim plate for attachment to a milling tool.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: September 2, 2008
    Assignee: Sandvik Intellectual Property AB
    Inventors: Ralf Lehto, Lars-Gunnar Wallström, Göran Pantzar, Per Blomstedt
  • Patent number: 7409896
    Abstract: A tool for chip removing machining comprising a tool head, which is provided with insert seats for the receipt of replaceable cutting inserts as well as a fastening part intended to be received in a machine tool. The tool has at least two chip pockets, in each one of which two replaceable cutting inserts are arranged, the two cutting inserts arranged in each chip pocket being intended for different types of machining and having the active surfaces thereof opposite each other. Furthermore, the two cutting inserts arranged in a common chip pocket have their axially furthermost portions located at different levels in the axial direction of the tool. The two cutting inserts for turning are located in different chip pockets and have their axially furthermost portions thereof located at different levels in the axial direction.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: August 12, 2008
    Assignee: Sandvik Intellectual Property AB
    Inventors: Sture Sjöö, Ronnie Sikström
  • Patent number: 7410330
    Abstract: The cutter assembly contains an axle having a number of parallel, equally spaced troughs along the axial direction, and a number of circular blade discs, each having a center hole threaded through by the axle. Each blade disc has a number of teeth along the circumference of the center hole corresponding and matching to the troughs of the axle. The blade disc has fewer blades than the teeth and the blade discs therefore can be mounted on the axle in different orientations so that their blades are spirally arranged. The axle of the cutter assembly has a fixed end and the blade discs can be sequentially installed to or removed from the other free end. The bearing at the free end has a smaller diameter so that the blade discs can be removed or installed directly passing through the bearing without removing it first.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: August 12, 2008
    Inventor: Shi-Ling Tsai
  • Publication number: 20080152444
    Abstract: A method for manufacturing a rotary tool for chip removing machining with at least one chip flute that extends in the longitudinal direction of the tool. The method involves preparing a mixture of a cemented carbide, cermet or ceramics powder and a carrier, such as a polymer, and placing the mixture in an extruding machine. The mixture is extruded in a feed direction by means of a die to form the diameter of the mixture body. The mixture body passes against a chisel which forms a chip flute in the outer periphery of the mixture body by chip-removing machining. When the chisel is displaced away from the mixture body, a non-fluted shaft portion is formed. By rotating the mixture body while contacted by the chisel, a helical chip flute can be formed. Alternatively, the body could be twisted after a straight flute has been formed, whereupon the flute becomes helical.
    Type: Application
    Filed: December 28, 2007
    Publication date: June 26, 2008
    Inventors: Joren Kugelberg, Roine Ericsson, Jonathan Fair, Anders Micski
  • Patent number: 7390149
    Abstract: A tool for chip removing machining, including a basic body and a replaceable cutting insert that has a center axis and is detachably mounted in an insert seat formed in the basic body. The seat is delimited by a bottom surface and at least one side support surface. The cutting insert includes an out of round engagement surface that is pressed against an out of round shoulder surface to rotationally secure the cutting insert. The shoulder surface is included in a separate lock member that is partially inserted in a space formed in the basic body, the space opening towards the insert seat and located between the side support surface and the bottom surface of the insert seat such that the lock member rotationally secures a lower part of the cutting insert, while an upper part of the cutting insert is supported by the side support surface.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: June 24, 2008
    Assignee: Sandvik Intellectual Property AB
    Inventor: Lennart Wihlborg
  • Patent number: 7220083
    Abstract: A cutting insert for milling operations, such as, face milling, slot milling, plunge milling, and ramping operations. The cutting insert exhibits a combination of favorable cutting edge strength, and unique cutting edge geometry, thus, allowing milling operations at relatively high feed rates. The cutting insert includes at least four cutting edges, wherein at least one of the cutting edges is a convex cutting edge. Certain embodiments of square cutting inserts will have four convex cutting edges which may be connected by nose corners. The convex cutting edge may comprise at least one of a circular arc, a portion of an ellipse, a portion of a parabola, a multi-segment spline curve, a straight line, or combinations of these. Wherein the convex cutting edge comprises a circular arc, the circular arc may have a radius greater than or equal to two times a radius of the largest circle that may be inscribed on the top surface.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: May 22, 2007
    Assignee: TDY Industries, Inc.
    Inventors: Gilles Festeau, Jean-Luc Dufour, X. Daniel Fang, David J. Wills
  • Patent number: 7131473
    Abstract: A coping bit capable of being easily modified to cut profiles having tenons of varying lengths is provided. The coping bit includes an axially extending primary drive shaft and a first cutting member fixed on the primary drive shaft. An axially extending secondary drive shaft having an upper and a lower portion is removably mounted on the primary drive shaft for rotation therewith, and a second cutting member is mounted on the secondary drive shaft in spaced relation to the first cutting member when the secondary drive shaft is mounted to the primary drive shaft.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: November 7, 2006
    Assignee: Freud America, Inc.
    Inventor: James M. Brewer
  • Patent number: 7104739
    Abstract: A milling disk for a floor machining appliance has a plurality of mounts for holding interchangeable plate-like milling tips, the milling disk being driven for rotation by the floor machining appliance and being held substantially parallel to the substructure to be machined so that the milling tips may bite into the substructure and remove matter from the surface thereof. The milling tips are constituted by ceramic cutting tips.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: September 12, 2006
    Assignee: Eugen Laegler GmbH
    Inventor: Karleugen Lagler
  • Patent number: 7073986
    Abstract: A wear insert for a tool holder includes a top surface and a bottom surface with a dimple disposed in the top surface. A boss is disposed within the dimple. The tool holder for releasably securing the wear insert has a tool holder body including an insert-receiving pocket formed at a forward end. The tool holder body has a bottom and at least one side wall for receiving an insert. The tool holder includes an internally threaded clamp-securing bore formed between an inclined surface and the insert-receiving pocket. A clamp is arranged on the tool holder body and including a lower face with a nose portion having a shaped lip and a clamp contour portion. The clamp also has a threaded aperture formed therethrough. A clamp screw is inserted into the threaded aperture of the clamp.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: July 11, 2006
    Assignee: Kennametal Inc.
    Inventor: Linn R. Andras
  • Patent number: 7052214
    Abstract: A diagonal ledge (22) is machined into each of the sidewalls (20) of the holder (12) with the ledges (22) crossing one another at an intersection B and the holder (12) is characterized by the bottom (18) of the pocket separating the ledges (22) to define a space between the ledges (22). A cutting insert (24) is characterized by a raised portion (32) on each face (26) thereof to present a pair of parallel and spaced shoulders (34) on each face (26) with the shoulders (34) on the first face (26) crossing the shoulders (34) on the second face (26). The assembly (10) is characterized by the shoulder (34) on the first face (26) seated on one of the ledges (22) and the shoulder (34) on the second face (26) seated on the other of the ledges (22) with a pair (28, 30) of cutting edges exposed for cutting. When worn, the insert (24) may be flipped one hundred and eighty degrees for exposing the other pair of cutting edges (28, 30).
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: May 30, 2006
    Inventor: Daniel L. Janness
  • Patent number: 7040843
    Abstract: An indexable cutting insert, a tool using a plurality of such inserts, and a method of forming flat bottomed grooves in the backs of flooring planks. The tool is arranged to accept indexable inserts, and the indexable inserts are specially arranged such that each insert has four sets of cutting faces for forming a flat bottom groove with 45 degrees groove side walls. The insert is provided with a conical dished face on its unsupported side, and a mating conical faced nut is positioned in the dished face and receives a threaded fastener, preferably a cap screw, which projects through the tool body, through the insert aperture and into the nut to accurately lock the insert in indexed position in such a way that the head of the cap screw is substantially free of impacted cutting debris.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: May 9, 2006
    Assignee: Great Lakes Custom Tool Mfg., Inc.
    Inventor: Russ L. Martin
  • Patent number: 7040844
    Abstract: A tool main cutting edge extends rearward in a rotating direction as it approaches a rear end at the outer periphery. The main cutting edge is a convexly curved line protruding toward the outside of a rake face viewed from the top and another convexly curved line extending toward the seat face, convexly curving from one end of the main cutting edge to the other, viewed from the side. When mounted, an inclination angle defined by the rake face gradually decreases from one end toward the other, and a projection line of a rotation about a rotation axis of the tool forms a convex arc smoothly coming, at a middle portion of the main cutting edge, into contact with a cylindrical surface about the axis and gradually retreats inward from the cylindrical surface as it approaches both ends of the main cutting edge.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: May 9, 2006
    Assignee: Mitsubishi Materials Corporation
    Inventor: Hisashi Daiguji