Patents by Inventor Arndt Glaesser

Arndt Glaesser 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
  • Patent number: 8403605
    Abstract: A plunge milling method includes: a) the area of material that is to be removed is enclosed by a plurality of milling paths, each milling path defining end positions of a milling head during the formation of plunge milling bores; b) to each milling path there is allocated a guide curve for the tool axis, each guide curve defining initial positions of the milling head during the formation of plunge milling bores; c) during the formation of plunge milling bores, the tool axis is oriented, as a function of a milling path and the respective guide curve, so that there is no danger of collision of the milling tool with a contour formed by plunge milling; d) for each milling path, bore axes for plunge milling bores are determined as a function of the respective guide curve, corresponding to a prespecified overlap of milling bores formed along the milling paths.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: March 26, 2013
    Assignee: MTU Aero Engines GmbH
    Inventors: Arndt Glässer, Stefan Heinrich
  • Patent number: 8096215
    Abstract: In a method for cutting freeform surfaces, a workpiece is cut by a cutting tool such that a desired freeform surface may be achieved, the cutting tool for cutting purposes being moved along at least one defined cutting path relative to the workpiece. A cutting tool is used, the tool head of which has a greater radius than a tool shank of the cutting tool.
    Type: Grant
    Filed: April 17, 2004
    Date of Patent: January 17, 2012
    Assignee: MTU Aero Engines GmbH
    Inventors: Arndt Glaesser, Stefan Heinrich
  • Patent number: 8014892
    Abstract: A method for compensating for at least one of positional deviations and shape deviations in NC-controlled cutting production machines where the method includes the steps of securing a new workpiece, processing the workpiece using the nominal data of the NC program, acquiring the set deviation data, optimizing the NC program using the acquired data and repeating these steps until at least one of required positional and shape tolerances have been achieved.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: September 6, 2011
    Assignee: MTU Aero Engines GmbH
    Inventor: Arndt Glässer
  • Publication number: 20110137450
    Abstract: A method for compensating positional and/or shape deviations in NC-controlled cutting production machines The method including the steps of securing a new workpiece, processing the workpiece using nominal data of the NC program, acquiring set deviation, optimizing the NC program using the acquired data and repeating the above steps until at least one of required positional and shape tolerances are achieved.
    Type: Application
    Filed: February 16, 2011
    Publication date: June 9, 2011
    Applicant: MTU AERO ENGINES GMBH
    Inventor: Arndt GLÄSSER
  • Patent number: 7877162
    Abstract: A process and apparatus for the manufacture of adapted, fluidic surfaces on a gas turbine blade is disclosed. In an embodiment, the process includes: (a) generating a nominal milling program for the manufacture of fluidic surfaces in the region of one flow inlet edge and/or one flow outlet edge for an ideal gas turbine blade; (b) measuring the area of an actual gas turbine blade in the region of one flow inlet edge and/or one flow outlet edge thereof; (c) generating a milling program adapted to the actual gas turbine blade, where measured values determined in step (b) are used to adapt the nominal milling program generated in step (a) to the milling program for the actual gas turbine blade; and (d) manufacturing of the fluidic surfaces on the actual gas turbine blades by milling with the use of the milling program generated in step (c).
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: January 25, 2011
    Assignee: MTU Aero Engines GmbH
    Inventors: Arndt Glaesser, Stefan Heinrich
  • Patent number: 7832968
    Abstract: In a milling method for producing a structural component from a raw material by chip-cutting, a milling tool is moved along at least one defined tool path for the milling. In addition to the at least one tool path, at least one collision contour is also defined. The position or orientation of the milling tool relative to the collision contour(s) is monitored. The position or orientation of the milling tool is changed and/or an error message is generated if at least one of the collision contours is damaged, i.e. intersected, by the milling tool.
    Type: Grant
    Filed: July 3, 2004
    Date of Patent: November 16, 2010
    Assignee: MTU Aero Engines GmbH
    Inventor: Arndt Glaesser
  • 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
  • Patent number: 7518329
    Abstract: A method and a device for cutting freeform surfaces is disclosed. In 5-axis cutting, a workpiece is milled by a tool, i.e., a milling cutter, in such a way that a desired freeform surface is obtained. The tool is moved for cutting along at least one tool path, i.e., cutting path, defined on the basis of interpolation points in relation to the workpiece. According to this invention, a tool vector in the form of leading angles and setting angles is defined for each interpolation point on the tool path. For each interpolation point a normal vector is determined from the leading angles and the setting angles and also from a drive vector determined for each interpolation point. The normal vector in each interpolation point on the tool path is used for a 3D-radius correction for equalizing/compensating for deviations in dimensions of the milling cutter.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: April 14, 2009
    Assignee: MTU Aero Engines GmbH
    Inventor: Arndt Glaesser
  • Publication number: 20090088890
    Abstract: A process and apparatus for the manufacture of adapted, fluidic surfaces on a gas turbine blade is disclosed. In an embodiment, the process includes: (a) generating a nominal milling program for the manufacture of fluidic surfaces in the region of one flow inlet edge and/or one flow outlet edge for an ideal gas turbine blade; (b) measuring the area of an actual gas turbine blade in the region of one flow inlet edge and/or one flow outlet edge thereof; (c) generating a milling program adapted to the actual gas turbine blade, where measured values determined in step (b) are used to adapt the nominal milling program generated in step (a) to the milling program for the actual gas turbine blade; and (d) manufacturing of the fluidic surfaces on the actual gas turbine blades by milling with the use of the milling program generated in step (c).
    Type: Application
    Filed: February 10, 2005
    Publication date: April 2, 2009
    Inventors: Arndt Glaesser, Stefan Heinrich
  • Patent number: 7392110
    Abstract: A workpiece is milled by a tool of a milling machine to form a desired freeform surface. For this purpose, the tool is moved relative to the workpiece along at least one tool path defined via support points. The support points of the or each tool path are defined either in workpiece coordinates or in machine coordinates. For each tool path, at least one spline is produced in connection with the support points. The or each spline is output to a control arrangement of the milling machine, which controls the motion of the tool along the or each tool path on the basis of the or each corresponding spline.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: June 24, 2008
    Assignee: MTU Aero Engines GmbH
    Inventor: Arndt Glaesser
  • Patent number: 7340321
    Abstract: In a method and a device for cutting freeform surfaces, a workpiece is cut by a tool or a cutter to produce a desired freeform surface. For the purpose of cutting, the tool is moved along at least one defined tool path or cutting path relative to the workpiece. In addition to the, or each tool path, at least one guide curve is defined for a tool vector of the tool, the tool vector being oriented as a function of the, or each guide curve 12 during the cutting.
    Type: Grant
    Filed: April 17, 2004
    Date of Patent: March 4, 2008
    Assignee: MTU Aero Engines GmbH
    Inventor: Arndt Glaesser
  • Publication number: 20080050184
    Abstract: In a method for cutting freeform surfaces, a workpiece is cut by a cutting tool such that a desired freeform surface may be achieved, the cutting tool for cutting purposes being moved along at least one defined cutting path relative to the workpiece. A cutting tool is used, the tool head of which has a greater radius than a tool shank of the cutting tool.
    Type: Application
    Filed: April 17, 2004
    Publication date: February 28, 2008
    Applicant: MTU AERO ENGINES GMBH
    Inventors: Arndt Glaesser, Stefan Heinrich
  • Publication number: 20070172320
    Abstract: A method and a device for cutting freeform surfaces is disclosed. In 5-axis cutting, a workpiece is milled by a tool, i.e., a milling cutter, in such a way that a desired freeform surface is obtained. The tool is moved for cutting along at least one tool path, i.e., cutting path, defined on the basis of interpolation points in relation to the workpiece. According to this invention, a tool vector in the form of leading angles and setting angles is defined for each interpolation point on the tool path. For each interpolation point a normal vector is determined from the leading angles and the setting angles and also from a drive vector determined for each interpolation point. The normal vector in each interpolation point on the tool path is used for a 3D-radius correction for equalizing/compensating for deviations in dimensions of the milling cutter.
    Type: Application
    Filed: July 2, 2004
    Publication date: July 26, 2007
    Inventor: Arndt Glaesser
  • Patent number: 7237989
    Abstract: A milling method is for producing milled structural components of materials that are difficult to machine by chip-cutting. A milling tool with a tool radius is rotationally driven about an axis of the milling tool to ensure a central rotation thereof, whereby a reference point of the milling tool preferably lying on the axis is moved on several curved paths, whereby the paths preferably comprise different curvatures, and whereby the milling tool is moved on the paths with a radial miller feed relative to the material. The curvature at each path point of each path is determined in such a manner that an optimized or maximized circumferential contact of the milling tool is ensured for each path point.
    Type: Grant
    Filed: June 11, 2004
    Date of Patent: July 3, 2007
    Assignee: MTU Aero Engines GmbH
    Inventor: Arndt Glaesser
  • 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: 20070067061
    Abstract: In a method and a device for cutting freeform surfaces, a workpiece is cut by a tool or a cutter to produce a desired freeform surface. For the purpose of cutting, the tool is moved along at least one defined tool path or cutting path relative to the workpiece. In addition to the, or each tool path, at least one guide curve is defined for a tool vector of the tool, the tool vector being oriented as a function of the, or each guide curve 12 during the cutting.
    Type: Application
    Filed: April 17, 2004
    Publication date: March 22, 2007
    Applicant: MTU AERO ENGINES GMBH
    Inventor: Arndt Glässer
  • Publication number: 20060206234
    Abstract: The invention relates to a method and an apparatus for the milling of freeform surfaces. A workpiece is milled by a tool of the milling machine in such a manner that a desired freeform surface arises. For this purpose, the tool is moved relative to the workpiece along at least one tool path defined via support points. According to the invention, the support points of the or each tool path are defined either in workpiece coordinates or in machine coordinates. For each tool path, at least one spline is produced in connection with the support points. The or each spline is output to a control arrangement of the milling machine, whereby the control arrangement controls the motion of the tool along the or each tool path on the basis of the or each corresponding spline (FIG. 1).
    Type: Application
    Filed: July 2, 2004
    Publication date: September 14, 2006
    Inventor: Arndt Glaesser
  • Publication number: 20060177281
    Abstract: The invention relates to milling methods for the production of structural components from materials that are difficult to machine by chip-cutting. In the method, a milling tool is moved along at least one defined tool path or milling path for the milling. According to the invention, at least one collision contour is defined in addition to the or each tool path, whereby the position or orientation of the milling tool relative to the or each collision contour is monitored, and whereby the position or orientation of the milling tool is changed and/or an error message is generated, if at least one of the collision contours is damaged by the milling tool (FIG. 1).
    Type: Application
    Filed: July 3, 2004
    Publication date: August 10, 2006
    Inventor: Arndt Glaesser
  • Publication number: 20060140734
    Abstract: The invention relates to milling methods for the production of structural components of materials that are difficult to machine by chip-cutting. A milling tool with a tool radius is rotationally driven about an axis of the milling tool to ensure a central rotation thereof, whereby a reference point of the milling tool preferably lying on the axis is moved on several curved paths, whereby the paths preferably comprise different curvatures, and whereby the milling tool is moved on the paths with a radial miller feed relative to the material. According to the invention, the curvature in each path point of each path is determined in such a manner that an optimized circumferential contact of the milling tool is ensured for each path point.
    Type: Application
    Filed: June 11, 2004
    Publication date: June 29, 2006
    Inventor: Arndt Glaesser