LASER WELD REPAIR METHOD FOR COMBUSTION CAP EFFUSION PLATE

PROBLEM TO BE SOLVED: To provide a method or a process for repairing a metallic component, such as a combustion cap effusion plate for a gas turbine. SOLUTION: The method includes generating a notch or groove in the metallic component and depositing a filler material 140 in the notch or groove. A pu...

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Bibliographische Detailangaben
Hauptverfasser:	MURPHY GENE ARTHUR JR, KOTTILINGAM SRIKANTH CHANDRUDU, XIE LIANGDE, JOHNSON JERE A
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING COMBUSTION APPARATUS COMBUSTION PROCESSES CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ENGINE PLANTS IN GENERAL GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS HEATING INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS SOLDERING OR UNSOLDERING STEAM ENGINES TRANSPORTING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method or a process for repairing a metallic component, such as a combustion cap effusion plate for a gas turbine. SOLUTION: The method includes generating a notch or groove in the metallic component and depositing a filler material 140 in the notch or groove. A pulsed laser 310 is irradiated to the filler material 140. The pulsed laser 310 has a power, frequency, and pulse width sufficient to apply heat to the metallic component and the filler material 140 to make at least a portion of the metallic component and the filler material 140 melt in order to weld the filler material 140 to the metallic component and repair or modify the metallic component. Various operating parameters of the pulsed laser 310 can be set to reduce detrimental heating effects. COPYRIGHT: (C)2011,JPO&INPIT