Method for welding nickel-based superalloys

A method of welding superalloy components comprising: (a) forming a weld prep groove at an interface of the components; (b) welding the components using a filler material at ambient temperature; (c) covering the filler material and adjacent surfaces of the components with a braze paste; and (d) heat...

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Bibliographic Details
Main Authors ARNETT MICHAEL D, SCHAEFFER JON C, NOWAK DANIEL A
Format Patent
LanguageEnglish
Published 18.10.2007
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
PUNCHING METAL
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Summary:A method of welding superalloy components comprising: (a) forming a weld prep groove at an interface of the components; (b) welding the components using a filler material at ambient temperature; (c) covering the filler material and adjacent surfaces of the components with a braze paste; and (d) heat treating the components, the heat treatment including a stress-relief cycle and a braze cycle. A similar process may be used to repair a crack in a nickel-based superalloy component.
Bibliography:Application Number: US20060402858