Patents by Inventor Joachim Bamberg

Joachim Bamberg 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: 10456867
    Abstract: The present invention relates to a device as well as a method for the additive manufacture of components by deposition of material layers by layer-by-layer joining of powder particles to one another and/or to an already produced pre-product or substrate, via selective interaction of the powder particles with a high-energy beam, wherein, for smoothing a surface of the component being produced running crosswise to the deposited material layers in between the deposition of two layers of the component, the complete edge region of the last layer that is applied and that runs along a surface of the component being produced is compacted in a direction of action that has a directional component parallel to the build-up direction of the layers, and/or at least one edge region of a surface of the component is also compacted.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: October 29, 2019
    Assignee: MTU Aero Engines AG
    Inventors: Joachim Bamberg, Roland Hessert, Georg Schlick
  • Patent number: 10427244
    Abstract: Disclosed is a method for generatively producing components by layer-by-layer building from a powder material by selective material bonding of powder particles by a high-energy beam. An eddy current testing is carried out concurrently with the material bonding. Also disclosed is an apparatus which is suitable for carrying out the method.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: October 1, 2019
    Assignee: MTU AERO ENGINES AG
    Inventors: Andreas Jakimov, Georg Schlick, Joachim Bamberg, Thomas Hess
  • Publication number: 20190232371
    Abstract: A layer-by-layer manufacturing method for the additive production of a region of a component, in particular of a turbomachine. The layer-by-layer manufacturing method includes: a) depositing a powder layer of a material onto a buildup and joining zone of a lowerable build platform; b) locally solidifying the material to form a component layer by selectively irradiating the material using an energy beam in accordance with a predetermined exposure strategy; c) lowering the build platform layer-by-layer by a specified layer thickness; and d) repeating the steps a) through c) until completion of the component region. Following at least one of the steps a) through c), a monitoring system ascertains and evaluates a result of the respective step; at least one intermediate correction step e) is executed for improving the ascertained result when the evaluation reveals an unacceptable deviation from a result specified for the respective step. Also, a corresponding layer-by-layer manufacturing apparatus.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 1, 2019
    Inventors: Alexander LADEWIG, Joachim BAMBERG, Andreas JAKIMOV, Sebastian ROTT, Steffen SCHLOTHAUER, Daniel GREITEMEIER, Michael SCHACHER
  • Patent number: 10145003
    Abstract: Disclosed are a method for forming a thermal barrier layer for a metallic component, which method involves forming a ceramic coat in which at least in part aluminum oxide and titanium oxide are disposed, the aluminum oxide and the titanium oxide being introduced by infiltration of aluminum-containing and titanium-containing particles or substances or by physical vapor deposition.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: December 4, 2018
    Assignee: MTU AERO ENGINES AG
    Inventors: Philipp Doebber, Joachim Bamberg, Stefan Schneiderbanger, Thomas Bautsch
  • Publication number: 20180326487
    Abstract: The invention relates to a layer-by-layer construction method for the additive manufacture of at least one region of a component. The layer-by-layer construction method comprises at least the following steps: a) application of at least one powder layer of a metallic and/or intermetallic material onto at least one buildup and joining zone of at least one lowerable building platform; b) layer-by-layer and local melting and/or sintering of the material for the formation of a component layer by selective exposure of the material with at least one high-energy beam in accordance with a predetermined exposure strategy; c) layer-by-layer lowering of the building platform by a predefined layer thickness; and d) repetition of steps a) to d) until the component region has been finished. The invention further relates to a layer-by-layer construction apparatus for the additive manufacture of at least one region of a component by an additive layer-by-layer construction method.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 15, 2018
    Applicant: MTU Aero Engines AG
    Inventors: Johannes Casper, Joachim Bamberg, Herbert Hanrieder, Guenter Zenzinger
  • Patent number: 10076879
    Abstract: A method for the generative production of a component and a device for carrying out such a method, includes the following steps: applying a material layer with a constant layer thickness; solidifying a region of the material layer according to a component cross section; generating an eddy-current scan of the solidified region, a scan depth corresponding to a multiple of the layer thickness; determining a material characterization of the solidified region taking into consideration a previous eddy-current scan of solidified regions of lower-lying material layers; and repeating the steps until the component is assembled. An electric material characterization of each individual layer is determined using a recursive algorithm of individual measurements (monolayer by monolayer), and thus the entire component is tested step by step completely in a highly resolved manner.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: September 18, 2018
    Assignee: MTU AERO ENGINES AG
    Inventors: Joachim Bamberg, Wilhelm Satzger, Thomas Hess
  • Patent number: 10070069
    Abstract: The invention relates to a method for the determination, at least in regions, of a contour of at least one additively manufactured component layer, in which a contour line of the component layer is traveled over, at least in regions, by a laser beam, and a time exposure of the traveled contour line is produced by a camera system. The invention further relates to a device for the determination, at least in regions, of a contour of at least one additively manufactured component layer. For this purpose, the device comprises at least one laser system, by which a contour line of the component layer can be traveled over, at least in regions, by a laser beam, and a camera system, which is designed to produce a time exposure of the contour line traveled over by the laser beam.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: September 4, 2018
    Assignee: MTU AERO ENGINES AG
    Inventors: Joachim Bamberg, Guenter Zenzinger
  • Publication number: 20170341175
    Abstract: A method for additively manufacturing at least a portion of a component, in particular a component of a turbomachine. The method includes the following steps: a) depositing at least one powder layer of a component material in powder form layer by layer onto a component platform in the region of a buildup and joining zone; b) locally solidifying the powder layer by selectively irradiating the same using at least one high-energy beam in the region of the buildup and joining zone, forming a component layer; c) lowering the component platform by a predefined layer thickness; and d) repeating steps a) through c) until completion of the component portion or of the component.
    Type: Application
    Filed: May 22, 2017
    Publication date: November 30, 2017
    Inventors: Alexander Ladewig, Joachim Bamberg, Benjamin Henkel, Laura Buerger
  • Publication number: 20170252860
    Abstract: The present invention relates to a device as well as a method for the additive manufacture of components by deposition of material layers by layer-by-layer joining of powder particles to one another and/or to an already produced pre-product or substrate, via selective interaction of the powder particles with a high-energy beam, wherein, for smoothing a surface of the component being produced running crosswise to the deposited material layers in between the deposition of two layers of the component, the complete edge region of the last layer that is applied and that runs along a surface of the component being produced is compacted in a direction of action that has a directional component parallel to the build-up direction of the layers, and/or at least one edge region (19) of a surface of the component (3?) is also compacted.
    Type: Application
    Filed: March 3, 2017
    Publication date: September 7, 2017
    Inventors: Joachim Bamberg, Roland Hessert, Georg Schlick
  • Publication number: 20170204975
    Abstract: The invention relates to a method for manufacturing a brush seal with inclined bristles. In order to be able to manufacture these brush seals in an especially cost-effective manner, at least the following steps are provided: provision of a brush blank with at least one metal thread or wire packing fastened at or in at least one wire core; local, at least partial heating of at least the wire core and/or a subregion of the thread or wire packing adjacent to the wire core, by a current flow through the wire core; bending of the thread or wire packing relative to the wire core for producing of the inclined position of the bristles of the brush seal. The invention further relates to an apparatus for manufacturing brush seals and a brush seal for a turbomachine, in particular for an aircraft engine.
    Type: Application
    Filed: January 6, 2017
    Publication date: July 20, 2017
    Inventors: Alexander Gindorf, Joachim Bamberg, Guenter Zenzinger
  • Patent number: 9696142
    Abstract: A method for determining residual stresses of a component (14), in particular a component of an aircraft engine, while it is being manufactured by an additive manufacturing process. The method includes the following steps: creating at least one local melt pool (26) in a surface (24) of the component (14) to be manufactured after a predetermined portion of the component is completed; optically detecting surface distortions and/or elongations occurring at least in a region around the created melt pool (26); and determining the residual stresses of the component (14) which are present at least in the region around the created melt pool (26) based on the optically detected surface distortions and/or elongations. Further an apparatus for determining residual stresses of a component (14) while it is being manufactured by an additive manufacturing process is provided.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: July 4, 2017
    Assignee: MTU Aero Engines AG
    Inventors: Joachim Bamberg, Roland Hessert
  • Patent number: 9671372
    Abstract: The invention relates to a method and device for ascertaining an edge layer characteristic of a component (12), in particular a component (12) for an aircraft engine. In the method, a reference body (22) with a known edge layer characteristic is arranged on the surface of the component (12). An ultrasonic wave (18) is introduced into the surfaces of the component (12) and the reference object (22) by an ultrasonic transmitter (16). An ultrasonic wave (18) resulting from the exchange between the component (12) and the reference body (22) is detected by an ultrasonic detector (20), and an edge layer characteristic of the component (12) is ascertained by an ascertaining device (28) using a difference between the generated ultrasonic wave (18) and the resulting ultrasonic wave (18).
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: June 6, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Joachim Bamberg, Roland Hessert
  • Publication number: 20170136574
    Abstract: The invention relates to a method for the quality assurance of at least one component (14) during the production thereof, wherein the production takes place by means of at least one additive manufacturing process, which comprises the following steps: building up the component (14) layer by layer, and themographically recording at least one image of each individual layer applied. In order to facilitate nondestructive crack detection in a metal component (14) during the production process (inspection by means of an online process), at least some of the layers applied are subjected to a controlled heat treatment below the melting point of the material of the component before the thermographic recording of the associated image, wherein the heat treatment causes the last layer applied to radiate heat which, if at least one crack develops in the layer, exhibits a characteristic heat profile at the crack.
    Type: Application
    Filed: April 29, 2015
    Publication date: May 18, 2017
    Applicant: MTU Aero Engines AG
    Inventors: Gunter Zenzinger, Thomas Hess, Joachim Bamberg, Alexander Ladewig
  • Publication number: 20170066084
    Abstract: The invention relates to a method and a device for the quality assurance of at least one component (14) during its production, wherein production is achieved by means of an additive manufacturing method with at least one processing laser (22), said method comprising the following steps: —layered assembly of the component (14), —thermographic recording of a plurality of images, over a defined period, of at least one component region (17) in the laser beam by means of at least one recording sensor (18), —detecting a temporal change in the heat distribution in a molten-pool-free component region, wherein the occurrence of a defect, (e.g. a crack, foreign material, a pore, a bonding fault or similar) in the uppermost component layer or beneath same is detected on the basis of a characteristic temporal change in the heat distribution at the defect (30).
    Type: Application
    Filed: April 24, 2015
    Publication date: March 9, 2017
    Inventors: Alexander Ladewig, Georg Schlick, Gunter Zenzinger, Joachim Bamberg, Thomas Hess
  • Patent number: 9535012
    Abstract: Disclosed is a method for the non-destructive testing of workpiece surfaces of a workpiece by means of fluorescent penetrant testing or dye penetrant testing. The method comprises applying a penetrant to the region of the workpiece surface to be examined, thereby allowing the penetrant to penetrate into possible recesses in the workpiece surface, applying a developer to the region of the workpiece surface to be tested; bleaching the penetrant by a gaseous or liquid oxidant; and visually assessing the penetrant that has remained in the recesses present in the workpiece surface.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: January 3, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Wilhelm Satzger, Joachim Bamberg, Roland Hessert, Robert Schuster, Thomas Hess
  • Patent number: 9512512
    Abstract: A method for coating a component, in particular a component of a gas turbine or of an aircraft engine, is disclosed. The coating is applied to the component by kinetic cold gas spraying, where prior to the deposition of the coating, the surface of the component to be coated is cleaned and compacted by shot peening with a blasting media. A component produced in this manner is also disclosed.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: December 6, 2016
    Assignee: MTU Aero Engines GmbH
    Inventors: Joachim Bamberg, Roland Hessert, Manuel Hertter
  • Publication number: 20160344948
    Abstract: The invention relates to a method for the determination, at least in regions, of a contour of at least one additively manufactured component layer, in which a contour line of the component layer is traveled over, at least in regions, by a laser beam, and a time exposure of the traveled contour line is produced by a camera system. The invention further relates to a device for the determination, at least in regions, of a contour of at least one additively manufactured component layer. For this purpose, the device comprises at least one laser system, by which a contour line of the component layer can be traveled over, at least in regions, by a laser beam, and a camera system, which is designed to produce a time exposure of the contour line traveled over by the laser beam.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 24, 2016
    Inventors: Joachim Bamberg, Guenter Zenzinger
  • Publication number: 20160116442
    Abstract: The invention relates to a method of nondestructive and contactless testing of components (3), wherein ultrasonic waves (6) are irradiated onto the surface of the component (3) at a predefinable, non-perpendicular angle of incidence (9) using an ultrasonic transmission sound transducer (1) arranged spaced apart from the surface of the component (3) and the intensity of the ultrasonic waves (7) reflected from the surface of the component (3) is detected with time resolution and/or frequency resolution by the antenna array elements (2n) of an ultrasonic antenna array (2) configured for detecting ultrasonic waves (7) and the phase shift of the ultrasonic waves guided at the surface of the test body is determined therefrom with respect to the ultrasonic waves (7) directly reflected at the surface of the component (3).
    Type: Application
    Filed: November 23, 2015
    Publication date: April 28, 2016
    Applicants: Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., MTU Aero Engines GmbH
    Inventors: Bernd KOEHLER, Martin BARTH, Joachim BAMBERG, Hans-Uwe BARON
  • Patent number: 9302351
    Abstract: The invention relates to a method for joining two components (10, 12) made of a metal material, which are connected on two mutually associated joining surfaces (14, 16) by means of a joined connection, wherein at least one of the components (10) is strengthened in at least a partial region of the joining surface (14) thereof prior to joining. The invention further relates to a joined connection of two components (10, 12) made of a metal material.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: April 5, 2016
    Assignee: MTU Aero Engines GmbH
    Inventors: Joachim Bamberg, Roland Hessert, Wilhelm Satzger, Thomas Mack, Alexander Gindorf, Martina Mack, Legal Representative
  • Patent number: 9194844
    Abstract: The invention relates to a method of nondestructive and contactless testing of components (3), wherein ultrasonic waves (6) are irradiated onto the surface of the component (3) at a predefinable, non-perpendicular angle of incidence (9) using an ultrasonic transmission sound transducer (1) arranged spaced apart from the surface of the component (3) and the intensity of the ultrasonic waves (7) reflected from the surface of the component (3) is detected with time resolution and/or frequency resolution by the antenna array elements (2n) of an ultrasonic antenna array (2) configured for detecting ultrasonic waves (7) and the phase shift of the ultrasonic waves guided at the surface of the test body is determined therefrom with respect to the ultrasonic waves (7) directly reflected at the surface of the component (3).
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: November 24, 2015
    Assignees: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., MTU AERO ENGINES GMBH
    Inventors: Bernd Koehler, Martin Barth, Joachim Bamberg, Hans-Uwe Baron