METHOD OF PRODUCING AND JOINING SUPERALLOY BALLS BY MEANS OF BRAZING AND OBJECTS PRODUCED WITH SUCH JOINTS

The invention relates to a method of producing and joining superalloy balls by means of brazing and to objects produced with such joints. According to the invention, an alloy powder covered with a brazing solder is bonded to a spherical core and subsequently transformed into a continuous alloy layer...

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Bibliographische Detailangaben
Hauptverfasser:	DOUIN, MYRIAM, BOYER, ALEXANDRA, RIO, CATHERINE, NAVEOS, SERGE, BACOS, MARIE-PIERRE, MERCIER, SEBASTIEN, MOREL, ARIEL, JOSSO, PIERRE, NADLER, JASON, GREGOIRE, AURELIE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR CASTING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METAL-WORKING NOT OTHERWISE PROVIDED FOR METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS POWDER METALLURGY SOLDERING OR UNSOLDERING SOUND-PRODUCING DEVICES TRANSPORTING WELDING WORKING BY LASER BEAM WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The invention relates to a method of producing and joining superalloy balls by means of brazing and to objects produced with such joints. According to the invention, an alloy powder covered with a brazing solder is bonded to a spherical core and subsequently transformed into a continuous alloy layer by means of brazing. Une poudre d'alliage recouverte de brasure est collée sur un noyau sphérigue puis transformée en une couche d'alliage continue par brasage. Le procédé comprend les étapes de: - mise à disposition d'une poudre de superalliage, -dépôt d'une couche de brasure à base de nickel / cobalt, - application de la poudre traitée sur un mandrin en polystyrène ou nickel, - application d'un dépôt de nickel pour garantir une résistance mécanique durant le brasage, -traitement thermique de pyrolyse et premier brasage, - brasage du matériau cellulaire. Optionnellement, un traitement d' aluminisation peut être réalisé.