Method for making a compositionally graded gas turbine disk

A compositionally graded gas turbine disk (20) is made by preparing a rotationally symmetric radially inner segment (28) of a gas turbine disk preform, rotating the inner segment about a central axis (24), spray applying a radially outer-segment material onto the radially inner segment (28) as it ro...

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Bibliographische Detailangaben
Hauptverfasser:	GROH, JOHN RAYMOND, OTT, ERIC ALLEN, SCHAFRIK, ROBERT EDWARD, KRUEGER, DANIEL DONALD
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CASTING COMBINED OPERATIONS ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES OTHER WORKING OF METAL PERFORMING OPERATIONS POWDER METALLURGY STEAM ENGINES TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A compositionally graded gas turbine disk (20) is made by preparing a rotationally symmetric radially inner segment (28) of a gas turbine disk preform, rotating the inner segment about a central axis (24), spray applying a radially outer-segment material onto the radially inner segment (28) as it rotates about the central axis (24), preferably achieving a gradual transition in composition, and thereafter further processing the gas turbine disk preform to produce the compositionally graded gas turbine disk (20).