Patents by Inventor Sebastian Piegert

Sebastian Piegert 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: 10865467
    Abstract: The use of a specific molybdenum-silicon-boron alloy and a particular production process in which powder is used makes it possible to achieve components which have a particular fiber-matrix structure and can be used for high-temperature applications and can also be produced inexpensively.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: December 15, 2020
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Michael Ott, Sebastian Piegert
  • Patent number: 10646956
    Abstract: A method for producing a component by the successive solidification of individual layers of powdered, granular or liquid material by irradiation with laser radiation using a laser, each layer being divided into an inner region and an edge region with an edge region surface, and, for each layer, after irradiation with the laser, at least the edge region surface of the edge region of the layer being irradiated with an ultrashort pulse laser. An optical irradiation device produces a component by successive solidification of individual layers of powdered, granular or liquid material.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: May 12, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Bernd Burbaum, Thomas Malow, Sebastian Piegert
  • 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
  • Publication number: 20190061266
    Abstract: An apparatus for a facility for additively manufacturing a component having a base forming a manufacturing surface, wherein the base includes a plurality of portions, and a plurality of temperature sensors being arranged in or below the manufacturing surface. At least one temperature sensor is further arranged in each portion and the temperature sensors are configured such that a temperature of each of the portions can be measured individually by the temperature sensors.
    Type: Application
    Filed: December 5, 2016
    Publication date: February 28, 2019
    Applicant: Siemens Aktiengesellschaft
    Inventors: Ole Geisen, Christoph Haberland, Sebastian Piegert, David Rule
  • Publication number: 20180135153
    Abstract: The use of a specific molybdenum-silicon-boron alloy and a particular production process in which powder is used makes it possible to achieve components which have a particular fiber-matrix structure and can be used for high-temperature applications and can also be produced inexpensively.
    Type: Application
    Filed: April 27, 2016
    Publication date: May 17, 2018
    Applicant: Siemens Aktiengesellschaft
    Inventors: Michael Ott, Sebastian Piegert
  • Publication number: 20180043570
    Abstract: For the first time, components can be produced from MAX-phases due to the use of an additive production method. A method for producing a component from MAX phases, in particular from Ti3SiC2 and/or Cr2AlC, in which an additive manufacturing process is disclosed. Powder is applied layer by layer and densified, the grain sizes of the powder lying at 10 ?m to 60 ?m, in which the scanning speed between the energy beam of the laser or electron beam and substrate with powder lies between 400 mm/s and 2000 mm/s, in particular at 1000 mm/s to 1500 mm/s, in which the power output is between 80 W and 250 W, in particular is 100 W to 170 W, in which a spot size of the energy beam lies between 30 ?m and 300 ?m.
    Type: Application
    Filed: March 21, 2016
    Publication date: February 15, 2018
    Inventors: Timo Depka, Arturo Flores Renteria, Britta Stõhr, Michael Ott, Sebastian Piegert
  • Patent number: 9802278
    Abstract: A multi component braze filler alloy is described having a melting temperature less than about 1235 deg. C. and greater than about 1150 deg. C. This alloy can be processed by hot isostatic pressing (HIP) at a temperature above about 1065 deg. C. and is particularly suited for the repair of gas turbine blades and vanes, especially those made from Alloy 247. The relatively low Ti content in the present braze alloy tends to form less MC carbides at the joint interface, particularly in comparison with other braze alloys high in Zr and/or Hf. Processes for employing this braze filler alloy in processing of nickel-base superalloys, especially Alloy 247, are presented.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: October 31, 2017
    Assignee: Siemens Energy, Inc.
    Inventors: Kazim Kazim, Sebastian Piegert
  • 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: 20160288263
    Abstract: An oscillating welding method is provided. The oscillating movement during welding in the vertical and/or horizontal direction results in smaller grains being obtained, the smaller grains preventing the development of cracks during welding.
    Type: Application
    Filed: October 13, 2014
    Publication date: October 6, 2016
    Inventors: Nikolai ARJAKINE, Bernd BURBAUM, Andres GASSER, Chen HONG, Stefanie LINNENBRINK, Frank MENTZEL, Michael OTT, Sebastian PIEGERT, Norbert PIRCH
  • Publication number: 20160250715
    Abstract: A method for producing a component by the successive solidification of individual layers of powdered, granular or liquid material by irradiation with laser radiation using a laser, each layer being divided into an inner region and an edge region with an edge region surface, and, for each layer, after irradiation with the laser, at least the edge region surface of the edge region of the layer being irradiated with an ultrashort pulse laser. An optical irradiation device produces a component by successive solidification of individual layers of powdered, granular or liquid material.
    Type: Application
    Filed: September 17, 2014
    Publication date: September 1, 2016
    Applicant: Siemens Aktiengesellschaft
    Inventors: Bernd Burbaum, Thomas Malow, Sebastian Piegert
  • Publication number: 20160023306
    Abstract: A nozzle for laser powder build-up welding, in particular, an annular powder channel for feeding powdery material into a processing region in front of the laser outlet opening, wherein the powder channel is designed in such a way that the angle included between the radially outer wall of the powder channel and the axis of the powder channel is constant or decreases in the direction of the material outlet opening at least in the region extending from the at least one material inlet opening to the material outlet opening is provided.
    Type: Application
    Filed: March 20, 2014
    Publication date: January 28, 2016
    Inventors: NIKOLAI ARJAKINE, BERND BURBAUM, TORSTEN JOKISCH, EIKE KOHLHOFF, LUKASZ PANEK, SEBASTIAN PIEGERT, CHRISTOPH STARKE
  • Publication number: 20150367445
    Abstract: A substrate (4) is remelted prior to deposition welding, thereby substantially reducing stresses in the region of the interface between the deposition welded portion (13) and the substrate (4).
    Type: Application
    Filed: January 9, 2014
    Publication date: December 24, 2015
    Inventors: Bernd BURBAUM, Torsten JOKISCH, Michael OTT, Sebastian PIEGERT
  • Publication number: 20150360256
    Abstract: Remelting during deposition welding of layers (7, 7?, 7?) enables a desired micro structure (10?) having enlarged grains to be controlled, which leads to improved properties at high temperatures.
    Type: Application
    Filed: December 19, 2013
    Publication date: December 17, 2015
    Inventors: Bernd BURBAUM, Torsten JOKISCH, Michael OTT, Sebastian PIEGERT
  • Publication number: 20150360329
    Abstract: A crack repair method for a turbine component using spark plasma sintering: Applying filler material on a cracked portion of the turbine component. Applying joining pressure on the cracked portion of the turbine component by punches pressing on the component. Simultaneously heating the filler material by an application of electric current. Then cooling the heated filler material to form a joint at the cracked portion.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 17, 2015
    Inventors: Gia Khanh PHAM, Sebastian PIEGERT, Grady L. SMITH
  • Publication number: 20150298258
    Abstract: A powder supply device (1) for a laser powder welding device and a laser powder welding device having such a powder supply device (1). The powder supply device (1) has a nozzle head (3) which tapers along a longitudinal axis (2) of the powder supply device (1) in the direction to a first end (4). A cavity (6) is arranged radially about the longitudinal axis (2) in an interior of the nozzle head (3) and tapers to the first end (4) of the nozzle head (3). The cavity (6) opens out into an annular opening (7) at the first end (4) for discharging a powder. The powder supply device (1) has a plurality N of powder feed lines (8-1, 8-2, 8-3) which extend through a second end (5) of the nozzle head (3), which lies opposite the first end (4) of the nozzle head, in the direction toward the cavity (6) and direct the powder from a powder reservoir into the cavity (6).
    Type: Application
    Filed: September 4, 2013
    Publication date: October 22, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Nikolai Arjakine, Bernd Burbaum, Torsten Jokisch, Michael Ott, Sebastian Piegert
  • Publication number: 20150224608
    Abstract: A multi component braze filler alloy is described having a melting temperature less than about 1235 deg. C. and greater than about 1150 deg. C. This alloy can be processed by hot isostatic pressing (HIP) at a temperature above about 1065 deg. C. and is particularly suited for the repair of gas turbine blades and vanes, especially those made from Alloy 247. The relatively low Ti content in the present braze alloy tends to form less MC carbides at the joint interface, particularly in comparison with other braze alloys high in Zr and/or Hf. Processes for employing this braze filler alloy in processing of nickel-base superalloys, especially Alloy 247, are presented.
    Type: Application
    Filed: April 20, 2015
    Publication date: August 13, 2015
    Inventors: Kazim Kazim, Sebastian Piegert
  • Patent number: 9101996
    Abstract: A multi component braze filler alloy is described having a melting temperature less than about 1235 deg. C. and greater than about 1150 deg. C. This alloy can be processed by hot isostatic pressing (HIP) at a temperature above about 1065 deg. C. and is particularly suited for the repair of gas turbine blades and vanes, especially those made from alloy 247. The relatively low Ti content in the present braze alloy tends to form less MC carbides at the joint interface, particularly in comparison with other braze alloys high in Zr and/or Hf.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: August 11, 2015
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Kazim Ozbaysal, Sebastian Piegert
  • Publication number: 20140339206
    Abstract: A method for re-melting and refilling a defect (7) in a surface (19) of a substrate (4) by re-melting the defect (7) causing a hollow (28) to be produced above the re-melt, and the hollow (28) is refilled. A nickel- or cobalt-based substrate (4) is re-melted by a laser re-melting method. Subsequently, the hollow (28) that is produced is refilled by a laser application method, in particular by soldering. Also, a component having a re-melted region (25) and a solder region (31) thereover is disclosed.
    Type: Application
    Filed: September 14, 2012
    Publication date: November 20, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Michael Ott, Sebastian Piegert, Ingo Reinkensmeier
  • Patent number: 8808872
    Abstract: A germanium containing nickel-based solder having a similar composition to a nickel-based superalloy is provided. As a result of which the proportion of ?? formed in the solder is reduced. The solder also includes chromium, cobalt, molybdenum, tungsten, aluminum, and titanium. A component including the solder is also provided.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: August 19, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Ott, Sebastian Piegert, Peter Randelzhofer, Robert Singer
  • Publication number: 20140191017
    Abstract: The invention relates to a novel alloy which comprises the elements carbon (C), chromium (Cr), cobalt (Co), molybdenum (Mo), tungsten (W), titanium (Ti), aluminium (Al), boron (B), and zirconium (Zr), based on nickel, and which has a very low tendency to form cracks during welding.
    Type: Application
    Filed: June 13, 2012
    Publication date: July 10, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Nikolai Arjakine, Torsten Jokisch, Andreas Neidel, Michael Ott, Sebastian Piegert, Dimitrios Thomaidis