METHODS FOR PRODUCING GAS TURBINE ENGINE ROTORS AND OTHER POWDERED METAL ARTICLES HAVING SHAPED INTERNAL CAVITIES

METHODS FOR PRODUCING GAS TURBINE ENGINE ROTORS AND OTHER POWDERED METAL ARTICLES HAVING SHAPED INTERNAL CAVITIES

Embodiments of a methods for producing gas turbine engine rotors and other powdered metal articles having shaped internal cavities are provided. In one embodiment, the method includes consolidating a powdered metal body utilizing a hot isostatic pressing process to produce a rotor preform in which e...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KINGTON HARRY LESTER, MARTINEZ ANTHONY, CHASE DEANNA PINAR, MINER AMANDINE
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
CASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
PERFORMING OPERATIONS
POWDER METALLURGY
STEAM ENGINES
TRANSPORTING
WEAPONS
WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:Embodiments of a methods for producing gas turbine engine rotors and other powdered metal articles having shaped internal cavities are provided. In one embodiment, the method includes consolidating a powdered metal body utilizing a hot isostatic pressing process to produce a rotor preform in which elongated sacrificial tubes are embedded. Acid or another solvent is directed into solvent inlet channels provided in the elongated sacrificial tubes to chemically dissolving the elongated sacrificial tubes and create shaped cavities within the rotor preform. The rotor preform is subject to further processing, such as machining, prior to or after chemical dissolution of the elongated sacrificial tubes to produce the completed gas turbine engine rotor.