Including Cut Off Tool Patents (Class 407/117)
  • Patent number: 11219959
    Abstract: A saw blade blank includes a body having an edge and an attachment portion formed on the body. The attachment portion is configured to connect to a power tool. A first portion of the edge is set in a first direction relative to the body. A second portion of the edge is set in a second direction opposite the first direction relative to the body. No cutting teeth are formed on the edge of the body.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: January 11, 2022
    Assignee: Milwaukee Electric Tool Corporation
    Inventor: James P. Horne, Jr.
  • Patent number: 10953471
    Abstract: An external turning tool includes an elongated tool body with opposite clamping and cutting portions which define an axial direction therebetween. The cutting portion includes a damping mechanism with an elongated damping member which defines an elongation axis. The elongation axis forms a non-zero damping member angle with the axial direction.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: March 23, 2021
    Assignee: Iscar, Ltd.
    Inventors: Meir Herman, Jony Saffouri, Meir Bar Hen
  • Patent number: 10512974
    Abstract: In a general aspect, a machining tool includes a diamond crystal having a working section configured to machine a workpiece. The machining tool includes a body and a shank extending from the body. The shank defines a cylindrical slot outside the body. The machining tool includes an assembly carried by the shank. The assembly includes a cylindrical pin that resides in the cylindrical slot. The assembly also includes a diamond crystal secured to an end of the cylindrical pin. The diamond crystal has a curved perimeter that defines a working section, which contacts a workpiece during operation of the machining tool. The shank is adapted to allow rotation of the cylindrical pin within the cylindrical slot to modify the working section.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: December 24, 2019
    Assignee: Quantum Valley Investment Fund LP
    Inventor: Ivar Allard Joachim Taminiau
  • Patent number: 10099297
    Abstract: A tool for machining fiber-reinforced materials, said tool having a tool body having a particular cutting edge that has at least a main function surface and has a diamond coating applied at least to said main function surface. In order to provide a tool and a method which are especially suitable for machining fiber-reinforced materials, the surface of the diamond coating has a reduced peak height Spk of less than 0.25 ?m.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: October 16, 2018
    Assignee: CemeCon AG
    Inventors: Oliver Lemmer, Manfred Weigand, Michael Woda, Werner Pütz, Biljana Mesic
  • Patent number: 10035200
    Abstract: A bevel gear manufacturing face cutter head (2) for face hobbing and face milling wherein the cutter head includes positive blade seating surfaces (16, 18) and the capability to clamp the blades (8) tight to the positive seating surfaces and to adjust the cutting blades radially after they are pre-clamped and axially located.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: July 31, 2018
    Assignee: THE GLEASON WORKS
    Inventors: Hermann J. Stadtfeld, Anthony J. Norselli
  • Patent number: 9905341
    Abstract: Provided are a metal nitride material for a thermistor, which exhibits high reliability and high heat resistance and can be directly deposited on a film or the like without firing, a method for producing the metal nitride material for a thermistor, and a film type thermistor sensor. The metal nitride material for a thermistor consists of a metal nitride represented by the general formula: TixAlyNz (where 0.70?y/(x+y)?0.95, 0.4?z?0.5, and x+y+z=1), and the crystal structure thereof is a hexagonal wurtzite-type single phase.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: February 27, 2018
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Toshiaki Fujita, Hiroshi Tanaka, Hitoshi Inaba, Kazutaka Fujiwara, Noriaki Nagatomo
  • Patent number: 9855608
    Abstract: Disclosed is a hard coating film formed on a hard base material such as cemented carbide. The hard coating film has a nanoscale multilayered structure to have improved oxidation resistance and wear resistance. The hard coating film is a hard coating film formed on the base material. The first layer is composed of a TiAl nitride having a composition of Ti1-aAla (0.3?a?0.7), and the second layer has a nanoscale multilayered structure or a structure in which the nanoscale multilayered structure is repeatedly laminated at least two times, the nanoscale multilayered structure including a thin layer A composed of an AlTiSi nitride, a thin layer B, a thin layer C composed of a AlCr nitride, and a thin layer D having thicknesses of 3 nm to 20 nm. The thin film B and the thin film D are composed of a TiAl nitride.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: January 2, 2018
    Assignee: KORLOY INC.
    Inventors: Je-Hun Park, Seung-Su Ahn, Sung-Gu Lee, Seoun-Yong Ahn, Young Heum Kim
  • Patent number: 9656325
    Abstract: A cutting tool assembly includes a cutting tool and an indexable cutting insert having an insert index axis. The cutting insert includes parallel insert first and second sides connected by an insert peripheral surface that extends peripherally around the cutting insert. At least one clamping hole opens out to one or both of the insert first and second sides, and at least a portion of the clamping hole is in a clamping region of the cutting insert. The insert peripheral surface includes cutting edges that are spaced-apart and extend from the insert first side to the insert second side. Along a width direction, which is perpendicular to the insert first and second sides, each of the cutting edges is wider than the cutting insert, at least at the cutting region of the cutting insert.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: May 23, 2017
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 9592558
    Abstract: A dual tip cutter (10) includes a body (12) defining a feed direction (F), a cutting direction (C) perpendicular to the feed direction, and a depth direction (D) perpendicular to both feed and cutting directions. A first cutting portion (35) is fixed relative to the body at a body first end. A second cutting portion (45) is fixed relative to the body at the body first end, adjacent the first cutting portion. The first and second cutting portions are stacked in the cutting direction so that the first cutting portion forms a leading cutting portion and the second cutting portion forms a trailing cutting portion for simultaneous cutting. The second cutting portion extends from the body further in the depth direction than the first cutting portion. A relative position between the first and second cutting portions is set such that a total chip load is shared between the first and second cutting portions in a predetermined ratio (K).
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: March 14, 2017
    Assignee: The Timken Company
    Inventors: Xiaolan Ai, Xiaozhong Song
  • Patent number: 8939684
    Abstract: A cutting insert has a cutting edge formed at an intersection of a rake surface and a relief surface, with a chip-control arrangement located at the rake surface. The chip-control arrangement includes a plurality of recesses that extend downwardly into the rake surface and a plurality of projections that extend upwardly from the rake surface. The plurality of recesses follow a pattern of increasing depth in a rearward direction from the forward portion of the cutting edge. The plurality of projections follow a pattern of increasing height in a rearward direction from the forward portion of the cutting edge.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: January 27, 2015
    Assignee: Iscar, Ltd.
    Inventor: Sergey Chistyakov
  • Patent number: 8911185
    Abstract: This detachable insert type cutting tool is provided with a cutting insert and a holder which holds the cutting insert. An insert mounting seat on which the cutting insert is mounted and upper and lower jaw sections which pinch the cutting insert are provided in the holder. The insert mounting seat is provided between the lower surface of the upper jaw section and the upper surface of the lower jaw section. Convex curve outer surfaces are formed on one side of the upper and lower jaw sections when viewed from the leading end sides of the upper and lower jaw sections, and concave curve inner surfaces are formed on the other side of the upper and lower jaw sections. In a state where the cutting insert is fixed to the insert mounting seat, the concave curve inner surface of the upper jaw section is disposed at a position retreated further radially outward than an arc surface extending along the concave curve inner surface of the lower jaw section.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: December 16, 2014
    Assignee: Mitsubishi Materials Corporation
    Inventors: Hidehiko Nagaya, Norio Aso, Shoichiro Watanabe, Yasuharu Imai, Kenji Ishizawa
  • Patent number: 8827598
    Abstract: A toolholder has a head portion including a slot separating the head portion into a lower extension with a lower seat and an upper extension with an upper seat to retain a cutting insert. The head portion contains a coolant entrance passage, which receives coolant from a coolant source, and a coolant delivery passage, which discharges coolant toward a cutting insert. The cutting insert includes a top surface with an upwardly extending protuberance that can be engaged by the toolholder to rigidly mount the cutting insert in the head portion of the toolholder. The cutting insert further includes a coolant channel formed in the top surface of the cutting insert that is positioned directly opposite of the coolant discharge to enhance the flow rate of the coolant delivered to the cutting insert-workpiece interface.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: September 9, 2014
    Assignee: Kennametal Inc.
    Inventors: Nicholas Joseph Henry, Kent Peter Mizgalski
  • Patent number: 8770895
    Abstract: A cutting insert having excellent chip discharge performance is provided. In the cutting insert of the present invention, a bottom surface of a concave groove 21 includes a first bottom surface 211 continuous with a cutting edge part 5, and a second bottom surface 212 which is located on a side further remote from the cutting edge part 5 than the first bottom surface 211, and is located at a lower position than a virtual extension line L1 of an end portion of the first bottom surface 211 on a side remote from the cutting edge part 5. Further, a pair of inclined surfaces 23 are located on a side further remote from the cutting edge part 5 than the end portion of the first bottom surface 211 on the side remote from the cutting edge part 5 in a top view. Therefore, the diameter of generated chips decreases by the fact that the chips are curled while sinking in space formed at a lower position than the virtual extension line L1 of the first bottom surface 211.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: July 8, 2014
    Assignee: Kyocera Corporation
    Inventor: Yoshihiro Inoue
  • Patent number: 8740511
    Abstract: A tool holder has a main body having a holder head extending away from a holder shank in a forward direction, a clamping member non-threadingly retained in the holder head, and a locking member operatively engaging a single abutment surface of the clamping member. The holder head has an insert receiving pocket at a forward end thereof with a pocket support surface substantially facing in an upward direction, and the clamping member is located entirely rearward of the pocket support surface with the abutment surface facing generally upwardly. The tool holder is configured to direct a clamping force towards, and clamp a cutting insert against, the pocket support surface.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: June 3, 2014
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8708613
    Abstract: In a cutting tool used for internal machining operations, a cutting insert with a single cutting portion is removably secured to an insert holder. The cutting insert has two opposing end surfaces, and an insert peripheral surface extending therebetween having three spaced apart abutment surfaces. The insert holder has a holder portion with a holder peripheral surface and an adjacent seating surface. At least one protuberance having four spaced apart reaction surfaces protrudes from the seating surface. The cutting insert is securable to the holding portion in left-hand and right-hand assembly positions, with the three abutment surfaces in clamping contact with three of the four reaction surfaces. In the left-hand assembly position, a first end surface is in clamping contact with the seating surface, and in the right-hand assembly position, a second end surface is in clamping contact with the seating surface.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: April 29, 2014
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8701529
    Abstract: A method of grooving a work-piece of superalloy uses a grooving cutting insert at least partially covered with a Cubic Boron Nitride (CBN) layer and having one or more interior ducts formed therein which open out to the insert's rake face at one or more corresponding openings. One or more coolant fluid streams, conveyed via these interior ducts at a pressure of no less than 200 bars, are directed upwardly and outwardly toward an interaction area between a cutting edge of the cutting insert and the work-piece, to thereby limit lengths of work-piece chips created during the grooving operation. The openings of the cutting insert's interior ducts may be located between 0.5-3.0 mm from the insert's cutting edge.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: April 22, 2014
    Assignee: Iscar, Ltd.
    Inventors: Patrick Deschenaux, Kurt Brenner
  • Patent number: 8695189
    Abstract: A cutting tool key is suitable for mounting and extracting a cutting insert into and from an insert receiving slot of a cutting tool holder blade. The key includes an elongated protrusion having first and second engagement portions with a pivot axis formed in the first engagement portion. The insert receiving slot has a holder axis extending in a forward-to-rearward direction, and a clamping-jaw surface facing a base-jaw surface. The base jaw surface has a holder-passage opening out to the holder's side surfaces, and the insert has an insert-passage opening out to the insert's lateral surfaces. The first and second engagement portions engage the holder-passage and insert-passage, respectively, with the pivot axis in the holder-passage. Rotating the key in an extraction direction about the pivot axis applies extraction-force on the insert. Rotating the key in a mounting direction, opposite to the extraction direction, applies a mounting-force on the insert.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: April 15, 2014
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8696262
    Abstract: A cutting tool used for grooving and turning operations, where a cutting insert is removably securable in a blade-shaped insert holder. The insert holder includes an insert receiving slot having a longitudinally extending upper receiving slot surface with longitudinally separated single pairs of ridge type V-shaped lateral stopping and upper clamping surfaces, the planar surface components of which form different internal angles. The cutting insert includes an upper surface with a single pair of groove type V-shaped upper abutment surfaces longitudinally separated from two pairs of groove type V-shaped lateral abutment surfaces. Clamping contact occurs between the pairs of upper abutment and upper clamping surfaces, and lateral contact only occurs between one surface component of one of the two pairs of lateral abutment surfaces and one surface component of the pair of lateral stopping surfaces for cases of a sufficiently large side load on the cutting insert.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: April 15, 2014
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8678717
    Abstract: A cutting insert that includes a cutting edge; a rake face region formed continuously with the cutting edge; and a clamp face region located more inward and higher than the rake face region is provided. The cutting insert includes a first rake face formed continuously with the cutting edge; a second rake face formed in an inclined surface shape from the first rake face toward the clamp face region; a projection formed so that at least a part of the projection is located on the first rake face, and includes a top portion at a position corresponding to a middle region of the cutting edge; and a concave part or a convex part formed so that at least a part is located on the second rake face, and located more inward than the projection. Chip accumulation into the insert and frictional resistance generated in the rake face region is decreased.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: March 25, 2014
    Assignee: Kyocera Corporation
    Inventor: Yoshihiro Inoue
  • Patent number: 8678718
    Abstract: In a cutting tool having an indexable cutting insert with four cutting portions, the cutting insert is securable within a holder portion in four index positions by means of a fastener. The cutting insert has two opposing end surfaces with a peripheral side surface and a central axis extending therebetween, the peripheral side surface having exactly four abutment zones. The insert holder has a holder portion and a body portion, the holder portion having a sidewall surface with a first, second and third reaction zone. The cutting insert is divided into four imaginary quadrants about its central axis and the four abutment zones are located entirely in two of the four imaginary quadrants, and for each index position, three of the four abutment zones are in clamping contact with the three reaction zones.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: March 25, 2014
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8647028
    Abstract: A cutting tool for grooving, parting and turning machining operations is capable of grooving to unlimited depths of cut. The cutting tool includes an indexable double-ended cutting insert having a downwardly extending insert clamping portion resiliently clamped in a self-retaining manner in an insert pocket so that chip formation is not hindered during such machining operations.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: February 11, 2014
    Assignee: Iscar, Ltd.
    Inventor: Shimon Athad
  • Patent number: 8573902
    Abstract: A grooving tool for cutting grooves in workpieces and a grooving tool tool holder for permitting replacement of inserts and permitting inserts to be replaced without moving the tool holder with respect to the grooving tool in which the tool holder is installed.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: November 5, 2013
    Assignee: Keenametal Inc.
    Inventor: Igor Kaufmann
  • Patent number: 8573904
    Abstract: A cutting insert having a base portion structured to be coupled to a tool body, the base portion having a leading end, a trailing end, and a mounting face extending therebetween. A number of cutting portions extend from the base portion opposite the mounting face. Each cutting portion of the number of cutting portions includes a cutting face disposed adjacent the leading end of the base. The cutting face having an angled portion disposed at a first angle with respect to a reference plane oriented parallel to the leading end and perpendicular to the mounting face. The cutting face also having a curved portion disposed between the angled portion and the base portion.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: November 5, 2013
    Assignee: Kennametal Inc.
    Inventors: Michael Anthony Weisel, Neal Stuart Myers, Karen Anne Craig
  • Patent number: 8491232
    Abstract: The present invention relates to a holder for a machining tool insert, in particular a lancing or cutting insert, having an approximately beam-shaped cutter holder, a cavity formed inside the end thereof, which serves as a receiving pocket for the tool insert and is bounded by clamping jaws that define the clearance width of the receiving pocket, a slot extending with a first end to within the proximity of the inner edge of the receiving pocket so as to permit elastic pivotability of one of the clamping jaws, and having a clamping arrangement comprising an actuation member for producing a clamping force that acts within the region of the slot upon the pivotable clamping jaw.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: July 23, 2013
    Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbH
    Inventor: Hans Schaefer
  • Patent number: 8449225
    Abstract: A metal cutting tool having an insert holder and a cutting insert releasably secured therein. The insert holder has upper and lower blocks and upper and lower jaws, each jaw projects from the front end of each respective block. The cutting tool has a cutting portion support projecting transversely from the front end of the lower clamp at an angle ?. The cutting insert has a shaft and a first cutting portion projecting transversely from the shaft at the angle ?. The cutting insert has non-planar abutment surfaces formed to mate with corresponding, non-planar support surfaces located on the lower and upper jaws and on the cutting portion support.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: May 28, 2013
    Assignee: Iscar, Ltd.
    Inventor: Uzi Gati
  • Patent number: 8388268
    Abstract: A toolholder has a head region, which contains a slot separating the head region into a lower section and an upper section, with a lower seat and an upper section to retain a cutting insert. The head region contains a coolant entrance passage, which receives coolant from a coolant source, and a coolant delivery passage, which discharges coolant toward a cutting insert. The head region further contains a fastener bore, which receives a fastener. The fastener has an axial fastener bore which provides fluid communication between the coolant entrance passage and a coolant reservoir between the fastener and the fastener bore. The coolant delivery passage communicates with the coolant reservoir to receive coolant, which passed from the coolant entrance passage and through the axial fastener bore into the coolant reservoir.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: March 5, 2013
    Assignee: Kennametal Inc.
    Inventors: Nicholas J. Henry, Charles L. Conway
  • Patent number: 8366355
    Abstract: A cutting insert, wherein: a cutting edge part having a quadrangular shaped cutting face, which is provided with a pair of side cutting edges extending in a longitudinal direction of an insert body, and a front cutting edge between ends of the side cutting edges that extends in a direction that intersects the longitudinal direction, is formed at an end of the insert body having a bar-shape; and viewed from a direction facing the cutting face perpendicularly to the longitudinal direction, at least one of a pair of corner edges where the side cutting edge and the front cutting edge intersect is formed in a convex shape such that it has a point of inflection at which, after a tangent line that makes contact with the corner edge rotates in a direction extending in the longitudinal direction along the corner edge from the front cutting edge, its direction of rotation changes, and it joins the side cutting edge.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: February 5, 2013
    Assignee: Mitsubishi Materials Corporation
    Inventors: Hidehiko Nagaya, Norio Aso, Yasuharu Imai
  • Patent number: 8277150
    Abstract: The detachable insert-type cutting tool is provided with a holder, a head member which has an insert seat on which a cutting insert is detachably mounted and which is detachably attached to a head portion of the holder so that an attachment surface of the head member is closely in contact with an attachment surface of the holder, a coolant hole which is formed inside the holder so as to be opened on the attachment surface of the holder, and a first groove which is formed on the attachment surface of the head member, communicating with the coolant hole opened on the attachment surface of the holder and extending so as to be opened toward a cutting edge of the cutting insert mounted on the insert seat.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: October 2, 2012
    Assignee: Mitsubishi Materials Corporation
    Inventors: Shoichiro Watanabe, Hidehiko Nagaya, Norio Aso, Yasuharu Imai
  • Patent number: 8147992
    Abstract: The present invention relates to ceramic cutting tools, such as, an aluminum oxide with zirconium oxide ceramic cutting tool with diffusion bonding enhanced layer and CVD coatings, particularly useful for machining modern metal materials. The method comprises a chemical reaction with a mixture including nitrogen and aluminum chloride introduced to form a diffusion bonding enhanced layer between the ceramic substrate and the CVD coatings. Thus formed diffusion bonding enhanced layer is highly adherent to the aluminum oxide with zirconium oxide ceramic substrate and significantly enhances the CVD coating properties, thus improving the machining performance in terms of the tool life of zirconium-based aluminum oxide with zirconium oxide ceramic cutting tools.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: April 3, 2012
    Assignee: TDY Industries, LLC
    Inventors: X. Daniel Fang, David J. Wills, Gilles Festeau
  • Patent number: 8137035
    Abstract: A cutting insert includes a rake face region located on an upper surface, a flank located on a front surface, and a cutting edge located at an intersection between the rake face region and the flank. At least three types of projections having different distances from the cutting edge are on the rake face region. When these three types of projections are arranged in the order of increasing distance from the cutting edge, namely, a first projection, a second projection and a third projection, the top of the second projection is lower than an imaginary straight line connecting the top of the first projection and the top of the third projection in the side view.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: March 20, 2012
    Assignee: Kyocera Corporation
    Inventors: Kenji Uchijo, Yoshihiro Inoue
  • Patent number: 7914913
    Abstract: The present invention relates to ceramic cutting tools, such as, a aluminum oxide with zirconium oxide ceramic cutting tool with diffusion bonding enhanced layer and CVD coatings, particularly useful for machining modern metal materials. The method comprises a chemical reaction with a mixture including nitrogen and aluminum chloride introduced to form a diffusion bonding enhanced layer between the ceramic substrate and the CVD coatings. Thus formed diffusion bonding is highly adherent to the aluminum oxide with zirconium oxide ceramic substrate and significantly enhances the CVD coating properties, and thus improving the machining performance in terms of the tool life of zirconium-based aluminum oxide with zirconium oxide ceramic cutting tools.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: March 29, 2011
    Assignee: TDY Industries, Inc.
    Inventors: X. Daniel Fang, David J. Wills, Gilles Festeau
  • Patent number: 7896585
    Abstract: A cutting tool includes an insert holder and a cutting insert releasably retained between upper and lower jaws of the insert holder. The lower jaw is provided with forward and rear projections. The forward projection has forward projection front and back abutment surfaces inclined, respectively, at first and second angles to a feed direction, the first angle being greater than the second angle. The cutting insert has a cutting portion adjacent a longitudinally extending shaft portion and a recess in a lower insert surface. The recess has front and back recess abutment surfaces inclined, respectively, at the first and second angles to a lower edge of the shaft portion. The forward projection front abutment surface abuts the front recess abutment surface, and the forward projection back abutment surface abuts the back recess abutment surface.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: March 1, 2011
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 7887267
    Abstract: A cutting insert for chip removing machining is provided, the cutting insert including an elongate center part, cutting edges being arranged at the opposite ends of the center part, the cutting insert being provided with engagement members along two longitudinal, opposite sides, the cutting edges forming, in an end view of the cutting insert, a mutual angle (?). A tool is also provided and includes such a cutting insert. The cutting insert includes rake faces associated with the respective cutting edge that are facing the opposite direction in the vertical direction (H) of the cutting insert, and the mutual angle (?) is in the interval of 10°<?<20°, and a distance (H1) is measured between the intersection of the cutting edge with a center line (C1-C1) of the cutting insert and the outermost portion of the lower engagement member and in that in an end view of the cutting insert, the ratio between the distance (H1) and the height (H) of the cutting insert is the following: 0.5H?H1?0.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: February 15, 2011
    Assignee: Seco Tools AB
    Inventors: Matti Niemi, Kaj Virtanen
  • Patent number: 7758286
    Abstract: An insert-indexable tool includes a holder and a head member having an insert mount seat for clamping an insert. The head member includes a first jaw having a clamping face and a second jaw having a base face, the clamping face and the base face opposing each other to provide an insert mount seat. A clamping screw having a shaft portion and a pressing portion is disposed in a distal portion of the holder and is inclined with respect to an extending direction of the insert mount seat to extend gradually toward an inside of the holder. The holder is provided with a threaded hole engageable with the shaft portion of the clamping screw. The first jaw is provided with a spot facing accommodating the pressing portion of the clamping screw, and a center axis of the spot facing and an axis of threaded hole obliquely intersect each other.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: July 20, 2010
    Assignee: Mitsubishi Materials Corporation
    Inventors: Hidehiko Nagaya, Norio Aso, Yasuharu Imai
  • Patent number: 7736733
    Abstract: The present invention relates to a coated cutting tool wherein a ceramic film is formed on a cemented carbide substrate. The substrate is equipped with a ridge line of a cutting edge upon which round honing or combination honing has been performed, a breaker disposed on a rake face connected to the ridge line of the cutting edge, a base face, and an insert hole for securing to a holder. The nose radius is set to at least 1.6 mm. The ceramic film is equipped with an ?-type aluminum oxide film. The ten-point average roughness Rz (5 microns reference length) is set to no more than 0.2 microns for the inside of the honed section, the flank face side of the honed section, and the rake face side of the honed section. The ten-point average roughness Rz is set to no more than 0.5 microns for the upper section of the breaker, the base face, and the area around the insert hole.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: June 15, 2010
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Minoru Itoh, Hideki Moriguchi, Akira Sakamoto
  • Patent number: 7665933
    Abstract: A cutting insert having an insert body formed in a shaft-shape, wherein a cutting edge portion having a square rake face is formed on an end portion of the insert body, and wherein the rake face includes: a pair of side cutting edges extending in a longitudinal direction of the insert body; a front cutting edge extending in a transverse direction perpendicular to the longitudinal direction between each front end of the side cutting edges; a pair of protruded streaks extending toward each of corner portions at which each of the side cutting edges intersect the front cutting edge, and a projection which protrudes and is separated from the protruded streaks between front ends of the protruded streaks in the vicinity of the corner portion and the corner portion.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: February 23, 2010
    Assignee: Mitsubishi Materials Corporation
    Inventors: Hidehiko Nagaya, Norio Aso, Yasuharu Imai
  • Patent number: 7641422
    Abstract: A cutting tool for parting and grooving operations of the kind including a coupling part, which is intended for mounting the cutting tool in a machine tool, and a tool head detachably connected to the coupling part. The tool head includes a basic holder part and, joined to the basic holder part, a blade part, in front portion of which an insert pocket is formed, in which a cutting insert is fastenable. The cutting tool also includes means for supplying cooling agent to the cutting insert. The cooling agent supplying means includes a tube member, which is mounted in a recess, which is transverse to the longitudinal direction of the blade part and arranged in the tool head. The tube member has an inlet for connection to a cooling agent source and an outlet for leading the cooling agent in a direction towards the cutting insert.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: January 5, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventors: Erik Berminge, Per Hansson
  • Patent number: 7621974
    Abstract: A cutting tip for a drilling tool includes a cemented carbide cutting base, a diamond element supported by the cutting base, and a bonding layer formed between the cutting base and the diamond element in order to bond them. The bonding layer includes diffusion layers and in which one or two or more metals selected from a group consisting of Fe, Ni, Co, Ti, Zr, W, V, Nb, Ta, Cr, Mo, and Hf diffuses into at least one of the diamond or the cement carbide.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: November 24, 2009
    Assignee: Mitsubishi Materials Corporation
    Inventors: Kazuo Yamamoto, Tadakazu Ohashi, Akhmadi Wardoyo
  • Patent number: 7581906
    Abstract: The present invention relates to ceramic cutting tools, such as, a aluminum oxide with zirconium oxide ceramic cutting tool with diffusion bonding enhanced layer and CVD coatings, particularly useful for machining modem metal materials. The method comprises a chemical reaction with a mixture including nitrogen and aluminum chloride introduced to form a diffusion bonding enhanced layer between the ceramic substrate and the CVD coatings. Thus formed diffusion bonding is highly adherent to the aluminum oxide with zirconium oxide ceramic substrate and significantly enhances the CVD coating properties, and thus improving the machining performance in terms of the tool life of zirconium-based aluminum oxide with zirconium oxide ceramic cutting tools.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: September 1, 2009
    Assignee: TDY Industries, Inc.
    Inventors: X. Daniel Fang, David J. Wills, Gilles Festeau
  • Patent number: 7578640
    Abstract: A cutting insert is retained in a cutting tool through a combination of resilient clamping and abutment by a threaded fastener. The threaded fastener, which abuts but does not penetrate cutting insert, pre-loads the cutting insert against cutting forces, by biasing the cutting insert against a jaw of the cutting tool.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: August 25, 2009
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 7574948
    Abstract: An uncoated cutting tool that comprises a body containing a pocket. A polycrystalline cubic boron nitride blank has a cutting tip. The blank is brazed into the pocket using a braze alloy whereby there is a braze joint between the body and the polycrystalline cubic boron nitride blank. The braze alloy has a liquidus temperature of at least about 900 degrees Centigrade wherein the braze alloy is selected from the group comprising a nickel-gold braze alloy containing nickel and gold, a copper-gold braze alloy containing copper and gold, a silver-titanium braze alloy containing silver and titanium, and a silver-palladium braze alloy containing silver and palladium.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: August 18, 2009
    Assignee: Kennametal Inc.
    Inventors: Edward J. Oles, Alfred S. Gates, Jr., Kent L. Reiner, William M. Alexander, IV, Jean-Pierre Genain
  • Publication number: 20090196698
    Abstract: The present invention relates to a tool system, comprising: a holder comprising a supply device for cooling lubricant, a cutting tool which has a tool cutter and a fixing part, and a tensioning device which has a tension screw by means of which a tension force acting upon the cutting tool can be produced for the purpose of fixing the latter in position on the holder, wherein a support face is realized on the holder for direct bearing contact of the fixing part of the cutting tool that is pressed-on by the tensioning screw, and wherein there is constituted a fluid space which adjoins this support face, is delimited by wall parts of the bearing fixing part of the cutting tool and is fluidically connected to the supply device for cooling lubricant, and from which cooling lubricant can be passed on to the region of the main cutter via a channel which, provided in the cutting tool, comes from the adjoining wall of the fixing part.
    Type: Application
    Filed: January 28, 2009
    Publication date: August 6, 2009
    Applicant: HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBH
    Inventor: Hassan Noureddine
  • Patent number: 7510355
    Abstract: Cutting tool, such as for end-cut and longitudinal turning, and for cutting grooves in a workpiece, which has an end or major cutting edge and two side or minor cutting edges, each of which are connected to the end or major cutting edge by two outer corners. Additional corner chip-breakers are formed between each of the outer corners and the ends of a chip-guiding rib.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: March 31, 2009
    Assignee: Kennametal Inc.
    Inventor: Franz Havrda
  • Patent number: 7448832
    Abstract: Support pad for a long hole drill head wherein the support pad includes a base body with a bottom surface, at least one side surface and a top surface. The top surface is arranged to function as a wear surface and is defined by a titanium-free wear-resistant coating, whereas the remaining surfaces of the support pad are defined by a titanium-containing wear-resisting coating.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: November 11, 2008
    Assignee: Sandvik Intellectual Property AB
    Inventors: Raimo Annanolli, Veronica Böstrom
  • Patent number: 7419337
    Abstract: A parting blade having a flat, elongate body, which is delimited by two opposite side surfaces and has two opposite longitudinal edges which are mutually parallel and present chamfered surfaces for wedging the body in a holder, and which includes at least one insert seat formed adjacent to an end, the position of which seat in relation to a longitudinal edge determines the tip height of a turning insert mounted in the insert seat. An attachment part is formed on one of the side surfaces of the blade body. The attachment part is shorter and thinner than the proper blade body and has two opposite longitudinal edges which are mutually parallel and present chamfered surfaces for wedging the attachment part in another holder. In this way, the parting blade can be formed for robust, wide turning inserts and in spite of this be mounted in holders intended for considerably thinner parting blades.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: September 2, 2008
    Assignee: Sandvik Intellectual Property AB
    Inventor: Erik Berminge
  • Publication number: 20080166197
    Abstract: The invention describes a drill plate with a clamping attachment in a rotatably driven base body, which on one of its end faces forms a centering groove that is open towards the top. A clamping slot extending into the material of the base body is arranged at the bottom of the centering groove. The centering groove is bounded by at least two opposing mounting jaws, with at least two diametrically opposing stop faces arranged in the region of the clamping jaws for providing centering contact with the drill plate. The clamping attachment is formed by a mounting screw which clamps the drill plate in the centering groove (2.3). To improve transfer of the operating torque from the drill plate to the base body and to facilitate handling, at least two centering fins that are diametrically opposed with respect to the transverse center axis are arranged on the drill plate. The centering fins contact corresponding stop faces disposed on the corresponding clamping jaws of the base body.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 10, 2008
    Inventors: Heinrich Heule, Harry Studer
  • Publication number: 20080131215
    Abstract: A tool for chip removing machining, including a replaceable cutting insert and a basic body. The basic body includes a rear fixing part, a front supporting part having an insert seat, and a tightening part situated over the support part, and spaced-apart from the front supporting part by a first gap and from the rear fixing part by a second gap. The tightening part is connected to the basic body via a joint. The joint is formed of at least one elastically resilient material portion and has an axis around which the tightening part is pivoted in order to press the cutting insert against the insert seat by a front finger. The rear fixing part includes an internal channel for feed of a fluid in the forward direction through the basic body. The internal channel extends into a second channel inside the tightening part via a channel section that is entirely or partly housed in a bridge which, like the joint, is formed of the material in the basic body, and which bridges one of the first and second gaps.
    Type: Application
    Filed: November 9, 2007
    Publication date: June 5, 2008
    Inventor: Sture Sjoo
  • Patent number: 7331096
    Abstract: The present invention relates to cutting tools and, more particularly, to cutting tools having inserts and insert-receiving recesses with curved surfaces. The cutting tool includes a toolholder having a recess and an insert adapted to be received in the recess. The recess has a top surface with a curved portion, a bottom surface with a curved portion, and a fixed stop surface. The insert has a top surface with a curved portion, a bottom surface with a curved portion, and a stop surface. The curved portion of the top surface of the insert and the curved portion of the bottom surface of the insert are curved such that they abut against the curved portion of the top surface of the recess and the curved portion of the bottom surface of the recess, respectively, when the stop surface of the insert abuts against the fixed stop surface of the recess. The present invention also relates to a cutting tool kit, a cutting insert and a method for positioning an insert relative to a toolholder.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: February 19, 2008
    Assignee: Seco Tools AB
    Inventors: Gabor Kugler, Kaj Virtanen
  • Patent number: RE43534
    Abstract: A metal cutting tool assembly comprising a rigid holder blade, an insert receiving slot formed in a leading end of the holder blade and defined between a resiliently displaceable clamping jaw formed integrally with the holder blade and rigid base jaw forming part of the holder blade, spaced apart displacement and supporting surfaces respectively formed in or on the clamping jaw and the holder, and a slot opening key, with a pair of spaced apart projecting prongs of the key adapted to engage the surfaces. At least one of the prongs is displaceable with respect to the holder blade so as resiliently to displace the clamping jaw outwardly with respect to the base jaw into an opening position for insertion or removal of an insert.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: July 24, 2012
    Assignee: Iscar, Ltd.
    Inventor: Jacob Friedman
  • Patent number: RE43718
    Abstract: A metal cutting tool assembly comprising a rigid holder blade, an insert receiving slot formed in a leading end of the holder blade and defined between a resiliently displaceable clamping jaw formed integrally with the holder blade and rigid base jaw forming part of the holder blade, spaced apart displacement and supporting surfaces respectively formed in or on the clamping jaw and the holder, and a slot opening key, a pair of spaced apart projecting prongs of the key with adapted to engage the surfaces. At least one of the prongs is displaceable with respect to the holder blade so as resiliently to displace the clamping jaw outwardly with respect to the base jaw into an opening position for insertion or removal of an insert.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: October 9, 2012
    Assignee: Iscar, Ltd.
    Inventor: Jacob Friedman