Method of manufacturing a hollow blade for a turbine engine

Details Method of manufacturing a hollow blade for a turbine engine Method of manufacturing a hollow blade for a turbine engine

B - Operations, Transporting

23

P

B23P 15/02 (2006.01) B21D 53/78 (2006.01) B23K 20/00 (2006.01) B23P 15/04 (2006.01) F01D 5/14 (2006.01) F01D 5/18 (2006.01)

Patent

CA 2467846

The invention relates to a method of manufacturing a hollow blade for turbine engine comprising a foot and a rotor blade, the method comprising a production stage of a blade preform (14) bearing a rotor blade part and a foot part, this production stage of the blade preform comprising the following operations: - the making of a unit (28) of at least two parts (30, 32) stacked and diffusion bonded together, in such a way that they solely form the rotor blade part of the preform; - the making of an additional element (34) intended to wholly form the foot part of the preform; and - the assembling of the additional element to the unit so as to obtain the blade preform.

L'invention concerne une méthode de fabrication d'une ailette creuse d'un turbomoteur comprenant un pied et une ailette de rotor, la méthode comprenant une étape de production d'une préforme d'ailette (14) portant une partie d'ailette de rotor et une partie de pied, cette étape de production de la préforme d'ailette comporte les opérations suivantes : - la fabrication d'une unité (28) d'au moins deux parties (30, 32) empilées et soudées ensemble par diffusion, de manière à ce qu'elles forment uniquement la partie d'ailette de rotor de la préforme; - la fabrication d'un élément supplémentaire (34) visant à former entièrement la pièce de pied de la préforme; et - l'assemblage de l'élément supplémentaire à l'unité afin d'obtenir la préforme d'ailette.

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