Method and device for welding workpieces made of high-temperature resistant super alloys

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United States of America Patent

PATENT NO 9347318
SERIAL NO

12994899

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Abstract

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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.

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Patent Owner(s)

  • FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.;SIEMENS AKTIENGESELLSCHAFT

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arjakine, Nikolai Berlin, DE 26 161
Bostanjoglo, Georg Berlin, DE 38 307
Burbaum, Bernd Übach-Palenberg, DE 59 162
Gasser, Andres Aachen, DE 21 523
Jambor, Torsten Köln, DE 8 101
Linnenbrink, Stefanie Kreuzau, DE 14 104
Melzer-Jokisch, Torsten Neuenhagen bei Berlin, DE 13 199
Ott, Michael Mülheim an der Ruhr, DE 106 687
Pirch, Norbert Aachen, DE 27 211
Wilkenhöner, Rolf Kleinmachnow, DE 27 259

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