APPARATUS AND METHOD FOR DIRECT WRITING OF SINGLE CRYSTAL SUPER ALLOYS AND METALS

Methods for direct writing of single crystal super alloys and metals are provided. The method can include: heating a substrate (23) positioned on a base plate (22) to a predetermined temperature using a first heater (24); using a laser (26) to form a melt pool (34) on a surface of the substrate (23)...

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Bibliographische Detailangaben
Hauptverfasser:	KONITZER, Douglas Gerard, CARTER, William Thomas, ROCKSTROH, Todd Jay
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	Methods for direct writing of single crystal super alloys and metals are provided. The method can include: heating a substrate (23) positioned on a base plate (22) to a predetermined temperature using a first heater (24); using a laser (26) to form a melt pool (34) on a surface of the substrate (23); introducing a superalloy powder (32) to the melt pool (34); measuring the temperature of the melt pool (34); receiving the temperature measured at a controller (40); and using an auxiliary heat source (41) in communication with the controller (40) to adjust the temperature of the melt pool (34). The predetermined temperature is below the substrate's melting point. The laser (26) and the base plate (22) are movable relative to each other, with the laser (26) being used for direct metal deposition. An apparatus (20) is also generally provided for direct writing of single crystal super alloys and metals.