Patents by Inventor Hakan Engstrom

Hakan Engstrom 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).

  • Corrosion resistant tool
    Patent number: 8057571
    Abstract: There is disclosed a cemented carbide tool containing tungsten carbide, titanium carbide, nickel and cobalt, molybdenum and chromium. The composition of the materials provides a good resistance to corrosion as well as high hardness and wear resistance. These properties are particularly interesting for the manufacture of tools for coldforming operations. Cold forming tools made with these materials have steady performance over a long period of time.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: November 15, 2011
    Assignee: Sandvik Intellectual Property AB
    Inventors: Emmanuel Pauty, Håkan Engström, Victor Rimbau, Gerard Vasco i Salas
  • Tool for coldforming operations with improved performance
    Patent number: 7713327
    Abstract: The present invention relates to a cemented carbide tool for the deep drawing operations, especially as the ironing dies, of the manufacturing of aluminum or steel beverage cans. The cemented carbide comprises WC with an ultra fine grain size, a binder phase of Co, and grain growth inhibitors (V and/or Cr), wherein the Co content is from about 5 to about 10 wt-%, and with a specific relation between HV30 and cobalt content.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: May 11, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventors: Håkan Engström, Luis Miñarro i Bruguera, Emmanuel Pauty, Vasco i Salas
  • Cemented carbide tool and method of making the same
    Patent number: 7708936
    Abstract: A cemented carbide tool comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in which surface portion the grain size is smaller than in the interior portion is disclosed. The surface portion with the fine grain size has a lower binder phase content than the interior portion. A method to form the cemented carbide cutting tool is also disclosed.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: May 4, 2010
    Assignee: Sandvik Intellectual Property Aktiebolag
    Inventors: Marianne Collin, Susanne Norgren, Håkan Engström
  • Tool for coldforming operations with improved performance
    Patent number: 7641710
    Abstract: The present invention relates to cemented carbide for steel tire cord drawing operations. The cemented carbide comprises WC with an ultra fine grain size and greater than 5 and less than 10 wt-% Co, including grain growth inhibitors (V and/or Cr) and with a specific relation between HV30 and cobalt content.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: January 5, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventors: Håkan Engström, Luis Miñarro i Bruguera, Vasco i Salas
  • Cemented carbide tool and method of making the same
    Publication number: 20090110817
    Abstract: A cemented carbide tool comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in which surface portion the grain size is smaller than in the interior portion is disclosed. The surface portion with the fine grain size has a lower binder phase content than the interior portion. A method to form the cemented carbide cutting tool is also disclosed.
    Type: Application
    Filed: October 23, 2008
    Publication date: April 30, 2009
    Applicant: SANDVIK INTELLECTUAL PROPERTY AKTIEBOLAG
    Inventors: Marianne Collin, Susanne Norgren, Hakan Engstrom
  • Corrosion resistant tool
    Publication number: 20080202191
    Abstract: There is disclosed a cemented carbide tool containing tungsten carbide, titanium carbide, nickel and cobalt, molybdenum and chromium. The composition of the materials provides a good resistance to corrosion as well as high hardness and wear resistance. These properties are particularly interesting for the manufacture of tools for coldforming operations. Cold forming tools made with these materials have steady performance over a long period of time.
    Type: Application
    Filed: December 20, 2007
    Publication date: August 28, 2008
    Inventors: Emmanuel Pauty, Hakan Engstrom, Victor Rimbau, Gerard Vascoi Salas
  • Tool for coldforming operations with improved performance
    Publication number: 20060272448
    Abstract: The present invention relates to a cemented carbide tool for the deep drawing operations, especially as the ironing dies, of the manufacturing of aluminum or steel beverage cans. The cemented carbide comprises WC with an ultra fine grain size, a binder phase of Co, and grain growth inhibitors (V and/or Cr), wherein the Co content is from about 5 to about 10 wt-%, and with a specific relation between HV30 and cobalt content.
    Type: Application
    Filed: May 25, 2006
    Publication date: December 7, 2006
    Inventors: Hakan Engstrom, Luis Bruguera, Emmanuel Pauty, Vasco Salas
  • Tool for coldforming operations with improved performance
    Publication number: 20060272449
    Abstract: The present invention relates to cemented carbide for steel tire cord drawing operations. The cemented carbide comprises WC with an ultra fine grain size and greater than 5 and less than 10 wt-% Co, including grain growth inhibitors (V and/or Cr) and with a specific relation between HV30 and cobalt content.
    Type: Application
    Filed: May 25, 2006
    Publication date: December 7, 2006
    Inventors: Hakan Engstrom, Luis Bruguera, Vasco Salas
  • Cemented carbide tool and method of making the same
    Publication number: 20050129951
    Abstract: A cemented carbide tool comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in which surface portion the grain size is smaller than in the interior portion is disclosed. The surface portion with the fine grain size has a lower binder phase content than the interior portion. A method to form the cemented carbide cutting tool is also disclosed.
    Type: Application
    Filed: December 15, 2004
    Publication date: June 16, 2005
    Applicant: SANDVIK AB
    Inventors: Marianne Collin, Susanne Norgren, Hakan Engstrom