Patents by Inventor Georg Bostanjoglo

Georg Bostanjoglo 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).

  • Publication number: 20200291788
    Abstract: A turbine blade has a blade tip, a cooling structure with cooling channels which are designed to have cooling fluid passed through them in order to cool the turbine blade during operation, an end section at a lower level than that of the blade tip, and an outer wall section extending up to the blade tip. The cooling structure is formed between the end section and the blade tip. A method produces a cooling structure of this type.
    Type: Application
    Filed: March 22, 2017
    Publication date: September 17, 2020
    Applicant: Siemens Aktiengesellschaft
    Inventors: Reiner Anton, Georg Bostanjoglo, Arturo Flores Renteria, Jacek Grodzki, Robert Herfurth, Eckart Schumann, Silke Settegast, Rüstü Söl
  • Patent number: 10478921
    Abstract: A method for generating, in layers, an application structure made of high heat resistant super alloys on a substrate is provided. A powdery construction material is melted by an energy beam at a working point, wherein the working point is guided across the substrate along a primary movement direction and thus swings transversely to the primary movement direction. The working point thereby swings from a first edge of a respective layer of the application structure to a second edge of the layer. In this way, a time interval passes between departure from a respective edge and a return to the respective edge directly following the departure, such that a melt bath on the respective edge solidifies into a paste-like zone during the time interval.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: November 19, 2019
    Assignees: Siemens Aktiengesellschaft, Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Nikolai Arjakine, Georg Bostanjoglo, Bernd Burbaum, Stefanie Linnenbrink, Frank Mentzel, Michael Ott, Sebastian Piegert, Norbert Pirch, Andres Gasser
  • Patent number: 10458250
    Abstract: Applying material along parallel welding lines per welding layer, and changing a direction of extension of the welding tracks by 90° for the next welding layer, is provided.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: October 29, 2019
    Assignees: Siemens Aktiengesellschaft, FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Nikolai Arjakine, Georg Bostanjoglo, Bernd Burbaum, Andres Gasser, Stefanie Linnenbrink, Andre Mehlhorn, Frank Mentzel, Michael Ott, Norbert Pirch
  • Publication number: 20190119818
    Abstract: The corrosion and erosion resistance of ceramic heat shield elements is improved by the use of yttrium oxide on aluminum oxide as a layer or substrate material is provided. A heat is disclosed having aluminum oxide in the substrate or as a layer on a substrate, wherein yttrium oxide, particularly only yttrium oxide, is present as the outermost layer, particularly directly on the aluminum oxide.
    Type: Application
    Filed: April 20, 2017
    Publication date: April 25, 2019
    Inventors: Georg Bostanjoglo, Arturo Flores Renteria, Helge Reymann, Dimitrios Zois
  • Publication number: 20180326536
    Abstract: A device for laser hardfacing is provided, in which a scanner installation and a feed installation for a material provided for hardfacing are disposed so as to be interconnected. The device furthermore includes a laser installation and a control installation. Wobbling of the laser beam during the laser hardfacing can be carried out by the device. A method for laser hardfacing using a wobbling movement is furthermore provided.
    Type: Application
    Filed: October 11, 2016
    Publication date: November 15, 2018
    Inventors: FRANK MENTZEL, GEORG BOSTANJOGLO, BERND BURBAUM, ANDRES GASSER, STEFANIE LINNENBRINK, NORBERT PIRCH, MICHAEL WEYLAND
  • Publication number: 20180304407
    Abstract: A method and component of coating layers having different thicknesses are produced by the variation of the powder mass flow, whereby the microstructure of the entire build-up welded area is adjusted in a targeted and an advantageous manner is provided.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 25, 2018
    Inventors: Nikolai Arjakine, Georg Bostanjoglo, Bernd Burbaum, Andres Gasser, Stefanie Linnenbrink, Frank Mentzel, Michael Ott, Norbert Pirch
  • Publication number: 20180281114
    Abstract: Provided are build-up welds which are achieved by means of a targeted frequency selection and an amplitude which relates to the diameter of the energy beam.
    Type: Application
    Filed: October 12, 2016
    Publication date: October 4, 2018
    Inventors: NIKOLAI ARJAKINE, GEORG BOSTANJOGLO, BERND BURBAUM, ANDRES GASSER, STEFANIE LINNENBRINK, FRANK MENTZEL, MICHAEL OTT, NORBERT PIRCH
  • Patent number: 9884391
    Abstract: Use of a laser beam (1) which has one external and one internal laser beam area (4,7) with different intensities enables a higher temperature gradient to be produced in the z-direction.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: February 6, 2018
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Georg Bostanjoglo, Bernd Burbaum
  • Publication number: 20170306763
    Abstract: Applying material along parallel welding lines per welding layer, and by changing direction of extension of the welding tracks by 90° for the next welding layer, provided.
    Type: Application
    Filed: October 1, 2015
    Publication date: October 26, 2017
    Inventors: Nikolai Arjakine, Georg Bostanjoglo, Bernd Burbaum, Andres Gasser, Stefanie Linnenbrink, Andre Mehlhorn, Frank Mentzel, Michael Ott, Norbert Pirch
  • Publication number: 20170225270
    Abstract: A method for producing through-holes in a wall of a component, by laser radiation is provided, that includes a wall delimiting a cavity in which a protection agent is provided that can be liquefied when heated. According to the method, through-holes are successively produced in the wall of the component in a plurality of defined points, two directly subsequent through-holes being produced such that a through-hole is produced in a predetermined point and the next through-hole is produced in an additional point which is further away from the predetermined point than at least two, in particular three or more omitted points that are closer to the predetermined point, and/or are produced such that a through-hole is produced in a predetermined point and the next through-hole is produced an additional point.
    Type: Application
    Filed: October 1, 2015
    Publication date: August 10, 2017
    Inventors: THOMAS BECK, GEORG BOSTANJOGLO, JENS DIETRICH, OLIVER KATZURKE, MARCEL KRÜGERKE, JAN MÜNZER, SILKE SETTEGAST
  • Publication number: 20170144252
    Abstract: A method for generating, in layers, an application structure made of high heat resistant super alloys on a substrate is provided. A powdery construction material is melted by an energy beam at a working point, wherein the working point is guided across the substrate along a primary movement direction and thus swings transversely to the primary movement direction. The working point thereby swings from a first edge of a respective layer of the application structure to a second edge of the layer. In this way, a time interval passes between departure from a respective edge and a return to the respective edge directly following the departure, such that a melt bath on the respective edge solidifies into a paste-like zone during the time interval.
    Type: Application
    Filed: March 6, 2015
    Publication date: May 25, 2017
    Inventors: Nikolai Arjakine, Georg Bostanjoglo, Bernd Burbaum, Stefanie Linnenbrink, Frank Mentzel, Michael Ott, Sebastian Piegert, Norbert Pirch, Andres Gasser
  • Publication number: 20170080529
    Abstract: A method for repairing an airfoil of an axial turbomachine in which material is deposited onto the airfoil by means of deposition welding, the airfoil being cooled during the deposition welding, is provided. A cooling collar including at least one cooling channel which has a coolant inlet and a coolant outlet and through which a coolant flows in the intended state, is also provided. The cooling collar also includes multiple cooling elements which are arranged along an inner circumference of the cooling collar and adjacently to the at least one cooling channel, the cooling elements resting against an object to be cooled, in particular an airfoil to be cooled, in the intended state.
    Type: Application
    Filed: April 28, 2015
    Publication date: March 23, 2017
    Inventors: NIKOLAI ARJAKINE, GEORG BOSTANJOGLO, BERND BURBAUM, ROMAN KALOCSAY
  • Patent number: 9556748
    Abstract: Known protective coatings with a high Cr-content and silicon as an additive have brittle phases which become additionally brittle under the influence of carbon during use. The protective coating herein has a double metallic layer that only contains tantalum on the outside contents of the layers.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: January 31, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Georg Bostanjoglo, Axel Kaiser, Werner Stamm, Jan Steinbach, Dimitrios Thomaidis
  • Patent number: 9458552
    Abstract: A process for welding directionally solidified metallic materials is presented. Process parameters are targeted selected with respect to laser welding, advancement, laser power beam diameter and powder mass flow. The temperature gradient, which is fundamentally decisive for the single-crystal growth during laser cladding, may be set in a targeted manner.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: October 4, 2016
    Assignees: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., SIEMENS AKTIENGESELLSCHAFT
    Inventors: Nikolai Arjakine, Georg Bostanjoglo, Bernd Burbaum, Andres Gasser, Torsten Jambor, Torsten Jokisch, Stefanie Linnenbrink, Selim Mokadem, Michael Ott, Norbert Pirch, Rolf Wilkenhöner
  • Patent number: 9435222
    Abstract: Known protective layers having high Cr content and additional silicon form brittle phases, which additionally become brittle under the effect of carbon during use. The protective layer according to the invention comprises a two-part metal layer, which contains tantalum on the outside.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: September 6, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Georg Bostanjoglo, Axel Kaiser, Werner Stamm, Jan Steinbach, Dimitrios Thomaidis
  • Patent number: 9347318
    Abstract: A method of welding workpieces of high-temperature superalloys is provided. Welding filler is applied in a plurality of layers to a surface of the workpiece via a heat input zone and a supply zone for supplying the welding filler into the heat input zone. The heat input zone and the supply zone on the one hand and the workpiece surface on the other hand are moved in relation to one another. A polycrystalline weld seam is generated by remelting a previously applied layer of the plurality of layers. Welding parameters are chosen such that a cooling rate during a solidifying of the material is at least 8000 Kelvins per second. Further, a welding apparatus for carrying out such a method is provided.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: May 24, 2016
    Assignees: SIEMENS AKTIENGESELLSCHAFT, FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Nikolai Arjakine, Georg Bostanjoglo, Bernd Burbaum, Andres Gasser, Torsten Jambor, Stefanie Linnenbrink, Torsten Melzer-Jokisch, Michael Ott, Norbert Pirch, Rolf Wilkenhöner
  • Publication number: 20160008919
    Abstract: Use of a laser beam (1) which has one external and one internal laser beam area (4,7) with different intensities enables a higher temperature gradient to be produced in the z-direction.
    Type: Application
    Filed: February 14, 2014
    Publication date: January 14, 2016
    Inventors: Georg BOSTANJOGLO, Bernd BURBAUM
  • Patent number: 9035213
    Abstract: A welding method for welding workpieces made of highly heat-resistant superalloys is provided. The method includes generating a heat input zone on the workpiece surface by means of a heat source, feeding welding filler material into the heat input zone by means of a feeding device, and generating a relative motion between the heat source and the feeding device on one hand and the workpiece surface on the other hand by means of a conveying device. Furthermore, according to the welding method, the mass feed rate is ?350 mg/min.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: May 19, 2015
    Assignees: SIEMENS AKTIENGESELLSCHAFT, FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
    Inventors: Nikolai Arjakine, Georg Bostanjoglo, Bernd Burbaum, Andres Gasser, Torsten Jambor, Stefanie Linnenbrink, Torsten Melzer-Jokisch, Selim Mokadem, Michael Ott, Norbert Pirch, Rolf Wilkenhöner
  • Publication number: 20150108098
    Abstract: By way of the targeted selection of method parameters in laser welding, namely feed rate, laser power beam diameter and powder mass flow, the temperature gradient can be set in a targeted manner, which temperature gradient is decisive for the single crystal growth during laser build-up welding.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 23, 2015
    Inventors: Nikolai ARJAKINE, Georg BOSTANJOGLO, Bernd BURBAUM, Andres GASSER, Torsten JAMBOR, Torsten JOKISCH, Stefanie LINNERBRINK, Selim MOKADEM, Michael OTT, Norbert PIRCH, Rolf WILKENHÖNER
  • Publication number: 20140342186
    Abstract: Known protective coatings with a high Cr-content and silicon as an additive have brittle phases which become additionally brittle under the influence of carbon during use. The protective coating herein has a double metallic layer that only contains tantalum on the outside contents of the layers.
    Type: Application
    Filed: September 12, 2011
    Publication date: November 20, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Georg Bostanjoglo, Axel Kaiser, Werner Stamm, Jan Steinbach, Dimitrios Thomaidis