US 2012/0267347 A1 · Method for welding workpieces made of highly heat-resistant superalloys, including a particular mass feed rate of the welding filler material

Method for welding workpieces made of highly heat-resistant superalloys, including a particular mass feed rate of the welding filler material

AssigneesSiemens Aktiengesellschaft, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.

InventorsNikolai Arjakine, Georg Bostanjoglo, Bernd Burbaum, Andres Gasser, Torsten Jambor, Stefanie Linnenbrink, Torsten Melzer-Jokisch, Selim Mokadem, Michael Ott, Norbert Pirch, Rolf Wilkenhöner

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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.

Claims21

Dependent claims

1-18. (canceled)

Dependencies are inferred from the claim text.

Facts

Application

13/509,002Filed 10 Nov 2010

Priority

EP 09014234.013 Nov 2009

Published

25 Oct 2012

Term ends

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Classification21 codes

B05B 7/228
Electrically , magnetically or electromagnetically, e.g. by arc: using electromagnetic radiation, e.g. laser
B23K 26/32
Bonding: taking account of the properties of the material involved
B23K 26/34
Working by laser beam, e.g. welding, cutting or boring: laser welding for purposes other than joining
B23K 26/342
Laser welding for purposes other than joining: build-up welding