Patents by Inventor Goetz Lebkuechner

Goetz Lebkuechner 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).

  • Patent number: 8635772
    Abstract: A method for the milling machining of components is disclosed. The method produces recesses with one or more lateral walls, in particular for the production of integrally bladed rotors for gas turbines, the recesses forming flow channels and the lateral walls forming blade surfaces of an integrally bladed rotor. The component to be machined by milling is clamped in a locating device for the milling machining. To adjust the vibrational properties of the component to be machined by milling, areas of the component are embedded in and/or filled with a machinable plastic.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: January 28, 2014
    Assignee: MTU Aero Engines GmbH
    Inventors: Stefan Heinrich, Arndt Glaesser, Goetz Lebkuechner
  • Publication number: 20100212158
    Abstract: A method for the milling machining of components is disclosed. The method produces recesses with one or more lateral walls, in particular for the production of integrally bladed rotors for gas turbines, the recesses forming flow channels and the lateral walls forming blade surfaces of an integrally bladed rotor. The component to be machined by milling is clamped in a locating device for the milling machining. To adjust the vibrational properties of the component to be machined by milling, areas of the component are embedded in and/or filled with a machinable plastic.
    Type: Application
    Filed: January 12, 2007
    Publication date: August 26, 2010
    Inventors: Stefan Heinrich, Arndt Glaesser, Goetz Lebkuechner
  • Publication number: 20070127996
    Abstract: A milling method and apparatus for the fabrication of components from materials that are difficult to cut for turbo-engines, producing recesses having one or more side walls, in particular for the fabrication of integrally bladed rotors for gas turbines, in which the recesses form flow channels and the side walls form blade surfaces of an integrally bladed rotor, are disclosed. A milling cutter rotates centrally about an axis of a milling machine. The milling cutter additionally executes an eccentric circular motion about a circular path axis at a distance from the axis of the milling machine. The axis of the circular path including the milling cutter executes an advance motion on a straight and/or curved path. The milling cutter includes cutting edges that are contoured with projections and recesses.
    Type: Application
    Filed: October 6, 2006
    Publication date: June 7, 2007
    Applicant: MTU Aero Engines GmbH
    Inventors: Stefan Heinrich, Arndt Glaesser, Goetz Lebkuechner
  • Publication number: 20070107217
    Abstract: A method for surface blasting of integrally bladed rotors is disclosed. In an embodiment, the method includes: a) providing an integrally bladed rotor; b) providing a vibratory grinding. system; c) arranging the integrally bladed rotor in a grinding container of the vibratory grinding system; d) filling the grinding container of the vibratory grinding system with blasting balls; and e) operating the vibratory grinding system filled with the blasting balls and the integrally bladed rotor to accelerate the blasting balls, wherein the accelerated blasting balls simultaneously strengthen the integrally bladed rotor on the surfaces of all the rotor blades and in the annular space between neighboring rotor blades.
    Type: Application
    Filed: May 30, 2006
    Publication date: May 17, 2007
    Applicant: MTU Aero Engines GmbH
    Inventors: Andreas Baus, Goetz Lebkuechner, Rolf-Juergen Picard
  • Publication number: 20060234606
    Abstract: The invention relates to an apparatus and a method for surface machining. The apparatus for surface machining a workpiece, i.e., for abrasive flow machining, has at least two opposite pressure devices, such that the workpiece to be machined is arranged between the opposite pressure devices and an abrasive can be moved past the workpiece to be machined. According to the invention, the opposite pressure devices can be pressurized with a defined pressure to establish a uniform pressure in the entire abrasive on every side of the workpiece to be machined. The movement of the abrasive relative to the workpiece to be machined is adjustable by a movement of the pressure devices in the same direction while maintaining the uniform pressure.
    Type: Application
    Filed: January 24, 2004
    Publication date: October 19, 2006
    Inventor: Goetz Lebkuechner
  • Patent number: 6869259
    Abstract: A milling method is provided for the manufacture of components composed of difficult-to-cut materials for turbomachines, aircraft and spacecraft by producing recesses with one or more side walls. An end milling cutter which cuts at the circumference and at the tip and has a tip contour which is rounded towards the circumference is used as the rotating milling tool. In addition to rotation about its axis, the milling tool performs an eccentric orbiting motion about an orbital axis spaced apart from its axis. The opposite senses of rotation lead to downcut milling, and the orbital axis performs a translational advance motion on a straight and/or curved path transversely to its longitudinal direction, with or without a swivelling motion.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: March 22, 2005
    Assignee: MTU Aero Engines GmbH
    Inventor: Goetz Lebkuechner
  • Publication number: 20030202854
    Abstract: A milling method is provided for the manufacture of components composed of difficult-to-cut materials for turbomachines, aircraft and spacecraft by producing recesses with one or more side walls. An end milling cutter which cuts at the circumference and at the tip and has a tip contour which is rounded towards the circumference is used as the rotating milling tool. In addition to rotation about its axis, the milling tool performs an eccentric orbiting motion about an orbital axis spaced apart from its axis. The opposite senses of rotation lead to downcut milling, and the orbital axis performs a translational advance motion on a straight and/or curved path transversely to its longitudinal direction, with or without a swivelling motion.
    Type: Application
    Filed: August 8, 2002
    Publication date: October 30, 2003
    Inventor: Goetz Lebkuechner