Patents Assigned to Sandvik Intellectual Property
  • Publication number: 20090155006
    Abstract: A basic body for tools for chip removing machining, including an internal duct, and an inlet including a female thread for the supply of liquid to the duct. The female thread of the inlet is formed in a cage, which is inserted in a seating delimited by an endless inner wall as well as a bottom, the duct mouthing in the seating.
    Type: Application
    Filed: November 25, 2008
    Publication date: June 18, 2009
    Applicant: Sandvik Intellectual Property AB
    Inventor: Leif NYSTROM
  • Publication number: 20090152014
    Abstract: The present invention A relates to a female part intended for top hammer-drilling equipment and a method for manufacturing female parts. The female part has a thread in the form of a ridge (2) in a wall (5). The ridge is delimited by a crest (9) and two flanks (10) between which a likewise helical groove (11) having a bottom (12) runs. An end the of the groove (11) is defined by a borderline (18), which separates the groove bottom (12) from a part surface (19) formed in the inside of the wall (5), the width of which part surface successively decreases in the peripheral direction, and which has a rotationally symmetrical shape essentially similar to the rotationally symmetrical basic shape of the thread (1).
    Type: Application
    Filed: May 11, 2007
    Publication date: June 18, 2009
    Applicant: Sandvik Intellectual Property AB
    Inventors: Peter Nava, Peter Sörensen
  • Patent number: 7547164
    Abstract: A face-milling insert, including a chip-removing main cutting edge adjacent to a first clearance surface, and a surface-wiping secondary edge adjacent to a second clearance surface, the main cutting edge forming an angle of 45° with an imaginary straight line in the extension of the secondary edge. Adjacent to a third clearance surface, an intermediate cutting edge is formed between the main cutting edge and the secondary edge, the intermediate cutting edge being shorter than the main cutting edge and forming an angle within a range of 20-40° with the extension line. The intermediate cutting edge transforms into the adjacent edges via arched part edges adjacent to convex clearance surfaces.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: June 16, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventor: Ingemar Hessman
  • Publication number: 20090146490
    Abstract: An exemplary breaking or excavating tool includes a body having a mounting end and a working end. A seating surface at the working end includes a cavity and axially projecting sidewalls formed integral to the body, an insert mounted within the cavity has a tip at an axially forwardmost end, a tapered forward surface, a side surface and a transition edge at an intersection of the forward surface and the side surface. A ring located radially outward of the projecting sidewalls is formed of a material harder than the body of the tool. The transition edge and an axially forwardmost surface of each of the sidewalls and the ring are arranged in an axially rearwardly extending stepped configuration. A material removal machine on which the breaking or excavating tool is mounted and a method of manufacturing the breaking or excavating tool are also disclosed.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 11, 2009
    Applicant: Sandvik Intellectual Property AB
    Inventors: Joseph Fader, Kenneth Monyak, Daniel Mouthaan, Colin Norris
  • Publication number: 20090148336
    Abstract: The present invention relates to a compound body comprising cemented carbide and steel with a carbon content corresponding to a carbon equivalent Ceq=wt-% C+0.3(wt-% Si+wt-% P) of from about 0.1 to about 0.85 wt-%. The body is particularly useful for earth moving tools e.g. dredge cutter heads.
    Type: Application
    Filed: November 7, 2008
    Publication date: June 11, 2009
    Applicant: Sandvik Intellectual Property AB
    Inventors: Stefan Ederyd, Per Quarfordt
  • Publication number: 20090146491
    Abstract: An exemplary breaking or excavating tool includes a body having a mounting end and a working end. A seating surface at the working end includes a cavity and axially projecting sidewalls formed integral to the body, an insert mounted within the cavity has a tip at an axially forwardmost end, a tapered forward surface, a side surface and a transition edge at an intersection of the forward surface and the side surface. A ring located radially outward of the projecting sidewalls is formed of a material harder than the body of the tool. The transition edge and an axially forwardmost surface of each of the sidewalls and the ring are arranged in an axially rearwardly extending stepped configuration. A material removal machine on which the breaking or excavating tool is mounted and a method of manufacturing the breaking or excavating tool are also disclosed.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 11, 2009
    Applicant: Sandvik Intellectual Property AB
    Inventors: Joseph FADER, Kenneth MONYAK, Daniel MOUTHAAN
  • Patent number: 7544023
    Abstract: A turning insert includes at least one cutting surface having at least one corner area. The corner area defines a nose angle in the range of 30-85°. The corner area includes a beveled edge. A bisector of the nose angle intersects the beveled edge at a center thereof at a right angle.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: June 9, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventors: Ronnie Löf, Chris Mills, Hans Thordenberg, Jörgen Wiman
  • Patent number: 7537637
    Abstract: The present invention relates to a method of making an agglomerated powder mixture by wet milling a powder mixture containing hard constituent powder(s) based on carbides of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and/or W and greater than about 15 wt-% binder phase powder(s) of Co and/or Ni as well as pressing agents and spray drying said slurry. By adding to said powder mixture before milling in addition from about 0.05 to about 0.50 wt-% of a complex forming and/or pH-decreasing/increasing additive such as triethanolamine, hydroxides or acids and a thickener in an amount of from about 0.01 to about 0.10 wt-% agglomerates with excellent flow properties are obtained.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: May 26, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventors: Ulf Jutterström, Annika Kauppi
  • Patent number: 7537419
    Abstract: In a first aspect, the invention relates to a cutting tool that comprises a part (1) having an insert seat as well as a cutting insert (2) detachably connected in the same, which insert comprises a first serration connecting surface (3), which is formed of ridges spaced-apart by grooves, which ridges are arranged to engage grooves situated between ridges in a second serration connecting surface (4) serving as insert seat in said tool part (1). According to the invention, in one (3) of said serration connecting surfaces (3, 4), at least one enlarged ridge (18) is arranged between two spaced-apart fields (20a, 20b), which separately comprises a plurality of ordinary ridges of a certain size, which enlarged ridge is arranged to engage a correspondingly enlarged groove (19) in the second serration connecting surface (4). In additional aspects, the invention also relates to a cutting insert and a tool part as such.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: May 26, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventors: Tomas Sjöberg, Gunnar Jansson
  • Patent number: 7530512
    Abstract: A rotor for a vertical shaft impact crusher includes a vertical wall segment having a first wall portion which is tangential to the rotor and is located adjacent to the periphery of the rotor, and a second wall portion, which is angled in relation to the first wall portion and extends from the first wall portion into the rotor. The second wall portion includes a first section, which extends from the interior of the rotor towards its periphery and forms and obtuse first angle with the first wall portion, and a second section, which connects the first section and the first wall portion. The second section and the first wall portion form a second angle, which is smaller than the first angle, and at least one pocket for retaining material.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: May 12, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventors: Rowan Dallimore, George Fensome
  • Patent number: 7531214
    Abstract: A method of depositing a crystalline ?-Al2O3 layer onto a cutting tool insert by Chemical Vapor Deposition at a temperature of from about 625 to about 800° C. includes the following steps: depositing a from about 0.1 to about 1.5 ?m layer of TiCxNyOz where x+y+z>=1 and z>0, preferably z>0.2; treating said layer at 625-1000° C. in a gas mixture containing from about 0.5 to about 3 vol-% O2, preferably as CO2+H2, or O2+H2, for a short period of time from about 0.5 to about 4 min, optionally in the presence of from about 0.5 to about 6 vol-% HCl; and depositing said Al2O3-layer by bringing said treated layer into contact with a gas mixture containing from about 2 to about 10 vol-% of AlC3, from about 16 to about 40 vol-% of CO2, in H2 and 0.8-2 vol-% of a sulphur-containing agent, preferably H2S, at a process pressure of from about 40 to about 300 mbar. Also included is a cutting tool insert with a coating including at least one ?-Al2O3-layer.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: May 12, 2009
    Assignee: Sandvik Intellectual Property Aktiebolag
    Inventor: Bjorn Ljungberg
  • Patent number: 7531213
    Abstract: A method for making a coated cutting tool insert by depositing by CVD, onto a cemented carbide, titanium based or ceramic substrate a hard layer system, having a total thickness of from about 2 to about 50 ?m, comprising at least one layer selected from titanium carbide, titanium nitride, titanium carbonitride, titanium carboxide and aluminum oxide, and an outer, from about 1 to about 15 ?m thick, aluminum oxide layer or (Al2O3+ZrO2)*N multilayer, a penultimate outermost layer of TiOx, where x ranges from about 1 to about 2, and an outermost, from about 0.3 to about 2 ?m thick, TiCxNyOz layer, where x+y+z=1, x?0, y?0, and z?0, followed by a post-treatment removing at least said outermost layer on the edge-line and on the rake face.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: May 12, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventor: Carl Björmander
  • Patent number: 7520700
    Abstract: A milling cutter for sharpening welding electrodes includes a tool body, and a plurality of cutting inserts fastened to the tool body. The inserts include a center cutting insert and at least two peripheral cutting inserts. Each peripheral cutting insert includes at least one cutting edge. The center cutting insert defines: two oppositely facing principle planes, two cutting edges disposed adjacent respective ones of the principle planes, and a concave surface extending between such cutting edges. The center cutting insert can cut (sharpen) the end surfaces of two welding electrodes simultaneously.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: April 21, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventors: Åke Johansson, Kenneth Lundberg
  • Patent number: 7513717
    Abstract: A face milling insert comprising a pair of main cutting edges which are spaced apart from a center and meet at a corner where they transform into a surface wiping secondary edge, which is intersected by a bisector defining the corner between the main cutting edges, inside each main cutting edge a slope surface being formed, which slopes towards a countersunk bottom surface in a chip surface. A shoulder, having a top side situated at a higher level than the bottom surface, extends inwardly from the secondary edge, the slope surface of the main cutting edge that actively co-operates with the secondary edge, terminating at the shoulder.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: April 7, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventors: Tord Engström, Magnus Åström
  • Patent number: D591779
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: May 5, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventor: Mats Malmberg
  • Patent number: D592688
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: May 19, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventor: Mats Malmberg
  • Patent number: D594043
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: June 9, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventor: Mats Malmberg
  • Patent number: D594044
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: June 9, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventor: Mats Malmberg
  • Patent number: D594045
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: June 9, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventor: Mats Malmberg
  • Patent number: RE40717
    Abstract: The present invention relates to a method of making a cemented carbide with submicron WC grain size with a powder metallurgical technique including milling, pressing and sintering. The method includes milling all components except WC for about three hours, then adding the WC powder and milling for about ten additional hours. In this way a cemented carbide powder with acceptable low compacting pressure is obtained.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: June 9, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventor: Mats Waldenstrom