Patents Assigned to Sandvik Aktiebolag
  • Patent number: 6595727
    Abstract: A milling tool includes a rotary cutting head having an end surface in which grooves are formed. The grooves communicate with a duct extending coaxially completely through the center of the cutting head to conduct cooling/lubricating fluid to cutting inserts mounted at outer ends of the grooves. The grooves induce a flow of fluid from inner ends of the grooves to the outer ends in response to rotation of the cutting head. A removable deflector can be attached to the end surface to deflect fluid from the main duct to the grooves.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: July 22, 2003
    Assignee: Sandvik Aktiebolag
    Inventor: Peder Arvidsson
  • Patent number: 6582163
    Abstract: A tool for chip removing machining includes a holder and a cutting insert removably mounted therein. The insert includes a shaft having opposite ends and defining a first longitudinal center line. A cutting head projects integrally from at least one end of the shaft. The cutting head includes a cutting edge forming an angle of 45° with the first longitudinal center line. Alternatively, or additionally, the cutting head defines a second longitudinal center line forming an angle of 45° with the first longitudinal center line.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: June 24, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Per Hansson, Claes Andersson
  • Patent number: 6582162
    Abstract: A tool for chip removing machining includes a holder having a top side in which is formed a seat for a cutting insert to be clamped by a clamping mechanism. That clamping mechanism includes a clamping body movable inside a cavity formed in the holder. The body carries a finger which passes through a hole formed in a bottom surface of the seat and engages the cutting insert. A rotatable screw is provided in a bore of the holder and extends into the cavity. The screw is formed with a thick first portion, as well as a thinner second portion having a male thread which is in engagement with a female thread formed in a through-hole of the clamping body. The bore in the holder is cylindrical and has a smooth surface, and the thick portion of the screw has a cylindrical smooth envelope surface which is rotatably mounted in the bore. A free end of the screw is supported by an end wall of the holder. The finger is completely surround by the bottom surface of the seat.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: June 24, 2003
    Assignee: Sandvik Aktiebolag
    Inventor: Akio Shiraiwa
  • Patent number: 6569221
    Abstract: This invention relates to an alloy suitable for use in industrial and other heating applications, having a ferritic stainless steel alloy comprising, in weight %, less than 0.02% carbon; ≦0.5% silicon; ≦0.2% manganese; 10.0-40.0% chromium; ≦0.6% nickel; ≦0.01% copper; 2.0-10.0% aluminum; one or more of Sc, Y, La, Ce, Ti, Zr, Hf, V, Nb and Ta in an amount of 0.1-1.0; remainder iron and unavoidable impurities. A heating element of this alloy is provided. A diffusion furnace having such a heating element is also provided.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: May 27, 2003
    Assignee: Sandvik Aktiebolag
    Inventor: Roger Berglund
  • Patent number: 6543970
    Abstract: A double negative cutting insert has opposite top and bottom sides between which transverse flank surfaces extend, adjacent to which cutting edges are formed. There are at least four useful major cutting edges, which separately extend from an active operating corner towards a nearby first inactive corner. Each major cutting edge co-operates with a minor cutting edge with the purpose of face machining the surface, that is left after material removal. The cutting insert has an octagonal basic shape, the top and bottom sides thereof having an identical shape with four spaced-apart supporting projections, which are placed near the four inactive corners and have plane abutment surfaces located in a common plane. An individual land adjacent to the major cutting edges has a concavely arched shape in order to provide a positive cutting geometry during operation.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: April 8, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Ingemar Qvarth, Anders Nilsson, Willy Åström, Per Berjerstål, Stefan Scherbarth
  • Patent number: 6540449
    Abstract: A rotatable tool for chip removing machining includes a shaft and a cutting body connected detachably to the shaft by a drawbar. At its front end the drawbar has a locking device for effecting mechanical engagement with the cutting body. The drawbar is axially movable by an actuating element located at a distance from the locking device. Inside the cutting body there is a cavity, which communicates with an opening in a rear part of the cutting body. The opening has a smaller width than the cavity, and the locking device has a larger width than the opening in order to be able to be pressed against an interior rear surface of the cavity of the cutting body after the locking device is inserted into in the cavity.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: April 1, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Per Bejerstål, Sven-Erik Carlsson
  • Patent number: 6527486
    Abstract: A cutting insert for a during includes a broken main cutting edge, the ends of which join respective additional edges of the insert by curved nose portions. Each curved nose portion forms a curved cutting edge defined by at least three sequentially arranged curved cutting edge segments defined by respective radii of different sizes. A first of the segments joins one end of the main cutting edge and has a first radius. The next segment has a radius of different length than the first radius and projects farther laterally than the first segment to perform a wiping function.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: March 4, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Jörgen Wiman, Åke Sjölander
  • Patent number: 6503028
    Abstract: A cutting insert includes a body formed of sintered powder, with a center hole extending through the body for receiving a fastening screw. The center hole includes a cylindrical portion. The body includes two side surfaces extending downwardly from respective main cutting edges of the insert. A recess is formed in each side surface and extends to the bottom of the body. Each recess has a length longer than the diameter of the center hole. Preferably, the length of the recess is 120% of the diameter of the center hole.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: January 7, 2003
    Assignee: Sandvik Aktiebolag
    Inventor: Lars-Gunnar Wallström
  • Patent number: D470516
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: February 18, 2003
    Assignee: Sandvik Aktiebolag (publ)
    Inventor: Claes Andersson
  • Patent number: D470517
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: February 18, 2003
    Assignee: Sandvik Aktiebolag (publ)
    Inventor: Claes Andersson
  • Patent number: D475376
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: June 3, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Ronnie Sikström, Sture Sj{umlaut over (oo)}
  • Patent number: D475377
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: June 3, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Ronnie Sikström, Sture Sj{umlaut over (oo)}
  • Patent number: D475378
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: June 3, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Ronnie Sikström, Sture Sj{umlaut over (oo)}
  • Patent number: D475379
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: June 3, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Ronnie Sikström, Sture Sj{umlaut over (oo )}
  • Patent number: D475724
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: June 10, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Ronnie Sikström, Sture Sj{umlaut over (oo)}
  • Patent number: D475725
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: June 10, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Ronnie Sikström, Sture Sj{umlaut over (oo)}
  • Patent number: D476019
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: June 17, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Ronnie Sikström, Sture Sj{umlaut over (oo)}
  • Patent number: D477004
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: July 8, 2003
    Assignee: Sandvik Aktiebolag
    Inventor: Peder Arvidsson
  • Patent number: D477005
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: July 8, 2003
    Assignee: Sandvik Aktiebolag
    Inventor: Peder Arvidsson
  • Patent number: D477618
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: July 22, 2003
    Assignee: Sandvik Aktiebolag
    Inventor: Peder Arvidsson