WELDING METHOD

PROBLEM TO BE SOLVED: To provide an arc welding method for repairing a compressor rear frame (CRF) of a gas turbine engine. SOLUTION: The method includes a step of forming an annular face (130) on a casing wall (12) by removing a seal flange (18) from an inner casing wall (12) of the frame (10) and...

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Bibliographische Detailangaben
Hauptverfasser:	TREWILER GARY E, HARRISON WILLIAM HENRY, PEACOCK DARYL
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING COMBINED OPERATIONS COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT PUMPS OTHER WORKING OF METAL PERFORMING OPERATIONS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SOLDERING OR UNSOLDERING TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an arc welding method for repairing a compressor rear frame (CRF) of a gas turbine engine. SOLUTION: The method includes a step of forming an annular face (130) on a casing wall (12) by removing a seal flange (18) from an inner casing wall (12) of the frame (10) and a step of manufacturing an exchange flange (118) so as to have an an annular face (132) having a radial direction width greater than the radial direction width of the annular face (130) of the casing wall (12). The respective surfaces of the flange and the wall are coupled, a joint section (122) is formed, a penetration reinforcement flux (128) is deposited adjacently to the joint section (122) and a root weldment (124) extending completely through the joint section is formed by carrying out one-pass gas tungsten arc welding work. Then, the flux is removed and a filler metal is deposited on the root weldment by carrying out the gas tungsten arc welding work to form a second weldment (126). COPYRIGHT: (C)2006,JPO&NCIPI