Method for affixing an addition to a localized zone of a...

C - Chemistry – Metallurgy – 23 – C

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C23C 4/06 (2006.01) B23K 31/02 (2006.01) B23K 35/02 (2006.01) B23P 6/00 (2006.01) B23P 15/04 (2006.01) C23C 4/18 (2006.01) F01D 5/00 (2006.01)

Patent

CA 2199691

Method for affixing an addition to a localized zone on a part (5) using a superalloy; it involves the following steps: a) prepare an addition (6) with pre-established functional properties; b) deposit on at least one surface of the addition (6) a uniform layer of a powder mixture that is composed of a nickel or cobalt superalloy powder and a metal brazing powder; c) braze the addition with the composite coating obtained from step b) on the localized zone of the machined part (5); finish machine the part.

Un procédé de réalisation d'un apport sur une zone localisée de pièce (5) en superalliage comporte les étapes suivantes : a) réalisation d'un élément d'apport (6) à propriétés fonctionnelles déterminées ; b) dépôt sur au moins une surface de l'élément d'apport (6) d'une couche uniforme obtenue à partir d'un mélange de poudre constitué d'une poudre en superalliage de nickel ou cobalt et d'une poudre en métal d'apport de brasage ; c) brasage de l'élément d'apport (6) composite revêtu obtenu a l'issue de l'étape b sur la zone localisée de la pièce (5) ; d) usinage en finition de la pièce.

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