Patents by Inventor Klas Tubinger

Klas Tubinger 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).

  • Cutting tool for metal working as well as method in the production of cutting tools
    Patent number: 7270504
    Abstract: A cutting tool and a method for the production of cutting tools for metalworking characterized in that the holder body of the tool first is submitted to a surface hardening that results in the formation of compressive stresses in the surface and then submitted to a surface treatment that gives additional contribution of compressive stresses in the surface. In this way, it is allowed to, on one hand, be able to modify/machine or remove parts of or the entire phase-transition layer obtained in the surface hardening at the same time as additional compressive stresses are built up in the surface of a hardened steel material in the tool body.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: September 18, 2007
    Assignee: Sandvik Intellectual Property AB
    Inventors: Klas Tübinger, Mikael Herdin, Dan Höglund
  • Holder for a cutting tool for metalworking and a method for the production of a holder for a cutting tool
    Publication number: 20060260439
    Abstract: There is disclosed a holder for a cutting tool and a method for the production of a cutting tool for metalworking that results in a holder body having increased fatigue strength at loads over 60% of the yield point in tension. The method and the tool are characterized in that the holder body of the tool is subjected to a hardening process resulting in deep hardening, and that the holder body then is subjected to a surface treatment resulting in a strain hardening of the surface in order to introduce compressive stresses in the surface zone of the holder body.
    Type: Application
    Filed: November 10, 2005
    Publication date: November 23, 2006
    Inventors: Klas Tubinger, Roger Lundgren, Dan Hoglund
  • Vibration-dampened tool for working in metallic material
    Patent number: 6929431
    Abstract: A drill for working in metallic materials includes a tool body having located in its front end at least one cutting insert, wherein the tool body is provided with one or several damping elements mounted such that during machining, a relative movement (i.e., sliding and/or deformation) of the tool body and the damping element is allowed to occur.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: August 16, 2005
    Assignee: Sandvik AB
    Inventors: Marie-Louie Bergholt, Leif Karlsson, Klas Tübinger
  • Cutting tool for metal working as well as method in the production of cutting tools
    Publication number: 20050002744
    Abstract: A cutting tool and a method for the production of cutting tools for metalworking characterized in that the holder body of the tool first is submitted to a surface hardening that results in the formation of compressive stresses in the surface and then submitted to a surface treatment that gives additional contribution of compressive stresses in the surface. In this way, it is allowed to, on one hand, be able to modify/machine or remove parts of or the entire phase-transition layer obtained in the surface hardening at the same time as additional compressive stresses are built up in the surface of a hardened steel material in the tool body.
    Type: Application
    Filed: May 17, 2004
    Publication date: January 6, 2005
    Applicant: SANDVIK AB
    Inventors: Klas Tubinger, Mikael Herdin, Dan Hoglund
  • Vibration-dampened tool for working in metallic material
    Publication number: 20040028490
    Abstract: A drill for working in metallic materials includes a tool body having located in its front end at least one cutting insert, wherein the tool body is provided with one or several damping elements mounted such that during machining, a relative movement (i.e., sliding and/or deformation) of the tool body and the damping element is allowed to occur.
    Type: Application
    Filed: June 5, 2003
    Publication date: February 12, 2004
    Applicant: SANDVIK AB
    Inventors: Marie-Louie Bergholt, Leif Karlsson, Klas Tubinger