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1.发明授权公开(公告)号：US11506479B2
公开(公告)日：2022-11-22
申请号：US16701243
申请日：2019-12-03
发明人： Johannes Clemens Schab , Sophie Betty Claire Duval , Piero-Daniele Grasso , Julien Rene Andre Zimmermann , Norbert Lucke
摘要： A method of analyzing layer thickness of a multilayer component is provided. The method includes: creating an opening having a predefined geometry partially into the multilayer component at a selected location on a surface of the multilayer component. The multilayer component includes a plurality of material layers including a substrate and a bond coat. The opening exposes each of the plurality of material layers including the substrate. Contrast of the exposed plurality of material layers can be increased. An image is created of the exposed layers in the opening using a digital microscope, and thickness of a bond coat, thickness of a depletion layer\ and/or thickness of an oxide layer is calculated from the image and based on the predefined geometry of the opening. Repairing the opening, allows the multilayer component to be used for an intended purpose after testing, e.g., re-installed and reused in a gas turbine.
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公开(公告)号：US11135677B2
公开(公告)日：2021-10-05
申请号：US15913180
申请日：2018-03-06
IPC分类号： B23K26/26 , B23K35/02 , B23P6/04 , B23K26/60 , B23P6/00 , F01D5/00 , C22F1/10 , B23K26/34 , B23K26/00 , B23K26/70 , B23K103/18 , B23K101/00 , B23K103/00 , B23K101/34
摘要： Methods of repair of a component or adding material to a component using laser welding are disclosed. One method may include repairing or adding material to the component by laser irradiating a wire material with a laser in an inert gas in a vicinity of the component. The laser irradiating the wire material includes modulated pulsing the laser through: a warm up phase during which an on-power of the laser is increased over time to a maximum target on-power, a melt and bond phase during which the wire material is melted and during which the on-power is less than the maximum target on-power, and a stress releasing phase during which the on-power of the laser is less than the on-power during the melt and bond phase. The laser irradiated wire material forms a weld material to repair a damaged area or add material to the component.
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3.发明申请公开(公告)号：US20200094355A1
公开(公告)日：2020-03-26
申请号：US16142418
申请日：2018-09-26
发明人： Norbert Lucke , Walter Brehm , Erwin Schoenfeld
摘要： The subject matter disclosed herein relates to methods of manufacturing metallic welding wires and the metallic welding wires formed thereby. A method of manufacturing a metallic welding wire includes filling a mold with a metallic powder, the metallic powder filling one or more narrow elongated tubes within the mold, and heat treating the tubes filled with the metallic powder, thereby forming a solid metallic welding wire within each tube.
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公开(公告)号：US20190275618A1
公开(公告)日：2019-09-12
申请号：US15913185
申请日：2018-03-06
发明人： Klaus-Dieter Hermann Maximilian Wassmer , Hans Bissig , David Cafarelli , Norbert Lucke , Fabrizio Mangano
摘要： Methods of forming or repairing a tip rail of a turbine are disclosed. One method may include repairing the tip rail, or adding material to form the tip rail, by laser irradiating a wire material with a laser in an inert gas in a vicinity of a tip plate. The laser irradiating the wire material includes modulated pulsing the laser through: a warm up phase during which an on-power of the laser is increased over time to a maximum target on-power, a melt and bond phase during which the wire material is melted and during which the on-power is less than the maximum target on-power, and a stress releasing phase during which the on-power of the laser is less than the on-power during the melt and bond phase. Exterior surface coatings and/or TBC may be sprayed onto the tip rail to protect it.
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公开(公告)号：US20190275611A1
公开(公告)日：2019-09-12
申请号：US15913180
申请日：2018-03-06
摘要： Methods of repair of a component or adding material to a component using laser welding are disclosed. One method may include repairing or adding material to the component by laser irradiating a wire material with a laser in an inert gas in a vicinity of the component. The laser irradiating the wire material includes modulated pulsing the laser through: a warm up phase during which an on-power of the laser is increased over time to a maximum target on-power, a melt and bond phase during which the wire material is melted and during which the on-power is less than the maximum target on-power, and a stress releasing phase during which the on-power of the laser is less than the on-power during the melt and bond phase. The laser irradiated wire material forms a weld material to repair a damaged area or add material to the component.
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