B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 70/68 (2006.01) B23P 15/00 (2006.01) B29C 70/00 (2006.01) F01D 9/02 (2006.01)
Patent
CA 2735408
The present invention relates to a method for manufacturing a turbine-engine composite rectifier comprising a ferrule provided with a plurality of stator vanes (2), said stator vanes each comprising a blade (4) and optionally a platform (3), said method comprising at least the following steps: a) first layers of a reinforcement (6) are wound on a mandrel, said mandrel also acting as a mold and comprising protruding portions, said first reinforcement layers (6) comprising buttonholes (7) positioned facing the protruding portions; b) a prefabricated disc (9) is positioned on each of the protruding portions: c) last reinforcement layers (8) are wound above the discs (9), thereby forming a preform; d) a resin is injected into the closed mold with the preform and the resin-impregnated preform is polymerized; e) the polymerized preform is taken out of the mold and the base of the blade (4) or optionally the platform of the vane (3), if the latter comprises one of them, is added by welding on each of the discs (9).
Smart & Biggar
Techspace Aero S.a.
LandOfFree
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