Patents by Inventor Hermann Mohnkopf

Hermann Mohnkopf 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).

  • Method for the manufacture of a blisk
    Patent number: 8242406
    Abstract: A method for manufacturing integrally bladed rotors by laser brazing a rotor disk (1) made of a nickel or titanium-base material to blades (3) made of titanium aluminide. A brazing metal similar to the blade material is used, which is introduced into the laser beam (4) as brazing power jet (5) and whose heat capacity, which is controlled by the melting temperature and the volume of the molten metal bath This provides for melting of the disk material and alloying with this material, but not for melting of the blade material, to which it is connected by adhesion. Such blisk features a low blade weight, reduced centrifugal effects and enhanced service life.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: August 14, 2012
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Karl Schreiber, Hermann Mohnkopf
  • Method for the manufacture of a blisk
    Publication number: 20090283503
    Abstract: A method for manufacturing integrally bladed rotors by laser brazing a rotor disk (1) made of a nickel or titanium-base material to blades (3) made of titanium aluminide. A brazing metal similar to the blade material is used, which is introduced into the laser beam (4) as brazing power jet (5) and whose heat capacity, which is controlled by the melting temperature and the volume of the molten metal bath This provides for melting of the disk material and alloying with this material, but not for melting of the blade material, to which it is connected by adhesion. Such blisk features a low blade weight, reduced centrifugal effects and enhanced service life.
    Type: Application
    Filed: May 15, 2009
    Publication date: November 19, 2009
    Inventors: Karl Schreiber, Hermann Mohnkopf