Patents by Inventor Andreas Larsson

Andreas Larsson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • PVD-coated cutting tool insert
    Patent number: 6884497
    Abstract: A coated cemented carbide insert (cutting tool), particularly useful for milling at high cutting speeds in alloyed steels, tool steels and milling in hardened steels includes a WC—Co cemented carbide containing NbC and TaC and a W-alloyed binder phase, and a coating including an inner layer of TixAlyN, 0.8<x+y<1.2, with 0.25<x/y<1.45, with columnar grains.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: April 26, 2005
    Assignee: Seco Tools AB
    Inventors: Anette Sulin, Andreas Larsson, Jacob Sjölén
  • CVD coated cutting tool insert
    Publication number: 20050037203
    Abstract: The present invention relates to a coated cemented carbide insert (cutting tool), particularly useful for milling of stainless steels and super alloys but also milling of steels in toughness demanding applications. The cutting tool insert is characterised by a cemented carbide body comprising WC, NbC and TaC, a W-alloyed Co binder phase, and a coating comprising an innermost layer of TiCxNyOz with equiaxed grains, a layer of TiCxNyOz with columnar grains and a layer of ?-Al2O3.
    Type: Application
    Filed: May 18, 2004
    Publication date: February 17, 2005
    Applicant: Seco Tools AB
    Inventors: Andreas Larsson, Anette Sulin, Lena Petersson, Sakari Ruppi
  • Coated cutting tool insert for machining of cast irons
    Publication number: 20040265648
    Abstract: The present invention concerns a coated cemented carbide cutting tool insert particularly useful for turning of cast irons. The cutting tool insert is characterised by a cemented carbide body comprising WC, cubic carbonitrides, a W-alloyed Co binder phase, a surface zone of the cemented carbide body that is binder phase enriched and nearly free of cubic carbonitride phase, and a coating including an innermost layer of TiCxNyOz with equiaxed grains, a layer of TiCxNyOz with columnar grains and at least one layer of Al2O3.
    Type: Application
    Filed: March 24, 2004
    Publication date: December 30, 2004
    Applicant: Seco Tools AB
    Inventors: Jenni Zackrisson, Sakari Ruppi, Andreas Larsson
  • Coated cutting tool insert
    Publication number: 20040197582
    Abstract: The present invention relates to a coated cemented carbide cutting tool insert particularly useful for turning of cast irons but also low alloyed steels at mediate to high cutting speeds. The cutting tool insert is characterised by a cemented carbide body comprising WC, cubic carbonitrides, a W-alloyed Co binder phase, a surface zone of the cemented carbide body that is binder phase enriched and nearly free of cubic carbonitride phase, and a coating including an innermost layer of TiCxNyOz with equiaxed grains, a layer of TiCxNyOz with columnar grains and at least one layer of Al2O3.
    Type: Application
    Filed: February 19, 2004
    Publication date: October 7, 2004
    Applicant: SECO TOOLS AB
    Inventors: Andreas Larsson, Jenni Zackrisson
  • PVD-coated cutting tool insert
    Publication number: 20030219633
    Abstract: A coated cemented carbide insert (cutting tool), particularly useful for milling at high cutting speeds in alloyed steels, tool steels and milling in hardened steels includes a WC—Co cemented carbide containing NbC and TaC and a W-alloyed binder phase, and a coating including an inner layer of TixAlyN, 0.8<x+y<1.2, with 0.25<x/y<1.45, with columnar grains.
    Type: Application
    Filed: March 18, 2003
    Publication date: November 27, 2003
    Applicant: SECO TOOLS AB
    Inventors: Anette Sulin, Andreas Larsson, Jacob Sjolen
  • Coated cutting tool insert
    Publication number: 20030211367
    Abstract: Coated cemented carbide inserts (cutting tool), particularly useful for milling at high cutting speeds in steels and milling in hardened steels are characterised by a WC—Co cemented carbide containing NbC and TaC and a W-alloyed binder phase and a coating including a first, innermost layer of TiCxNyOz with equiaxed grains, a second layer of TiCxNyOz with columnar grains and at least one layer of Al2O3 composed primarily of the &kgr;-phase.
    Type: Application
    Filed: March 18, 2003
    Publication date: November 13, 2003
    Applicant: SECO TOOLS AB
    Inventors: Andreas Larsson, Anette Sulin, Lena Pettersson