Multiple alloy turbine rotor section, welded turbine rotor incorporating the same and methods of their manufacture

A method of making a multiple alloy (100), multi-section welded turbine rotor (10) includes providing (110) a forged multiple alloy rotor section having an integral microstructure, the rotor section comprising a first alloy (30) having a first alloy composition (32) and second alloy (40) having a se...

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Bibliographische Detailangaben
Hauptverfasser:	Schwant, Robin Carl, Ganesh, Swami
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS BLASTING CASTING CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COMBINED OPERATIONS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ENGINE PLANTS IN GENERAL FERROUS OR NON-FERROUS ALLOYS FORGE FURNACES FORGING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HAMMERING 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 MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES OTHER WORKING OF METAL PERFORMING OPERATIONS POWDER METALLURGY PRESSING METAL PUNCHING METAL REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION RIVETING SOLDERING OR UNSOLDERING STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS UNIVERSAL MACHINE TOOLS WEAPONS WELDING WORKING BY LASER BEAM WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A method of making a multiple alloy (100), multi-section welded turbine rotor (10) includes providing (110) a forged multiple alloy rotor section having an integral microstructure, the rotor section comprising a first alloy (30) having a first alloy composition (32) and second alloy (40) having a second alloy composition (42), a first weld face (34) comprising the first alloy (30) on a first end (36) and an a second weld face (44) comprising the second alloy (40) on an opposed second end (46). The method (100) also includes providing (120, 130) a first rotor section (50) comprising the first alloy composition (52) and a second rotor section (60) comprising the second alloy composition (62). The method (100) also includes welding (140) the first rotor section (50) to the first weld face (34) and welding (150) the second rotor section (60) to the second weld face (44).