B - Operations – Transporting – 29 – B
Patent
B - Operations, Transporting
29
B
B29B 11/16 (2006.01) B29C 70/48 (2006.01) B29C 70/54 (2006.01)
Patent
CA 2727357
The invention relates to a method for producing a part comprising a hollow body made from a composite material, using preforms (11, 12), said method including the following steps: a step in which the preforms are disposed around a suitable supporting element (1) such that the coupling edges of each preform (11, 12) overlap, and come into contact, with a coupling edge of another preform (12, 11); a step in which the coupling edges of each preform are joined along a seam; and a step in which the supporting element is removed and a mould core is inserted in its place before the assembly is placed inside a mould and resin is injected using an RTM/LRI method, prior to the polymerisation of said resin.
Procédé de fabrication d'une pièce à corps creux en matériau composite La présente invention se rapport à un procédé de fabrication d'une pièce à corps creux en matériau composite à partir de préformes (11, 12) comprenant les étapes visant à. disposer les préformes autour d'un support (1) approprié de manière à ce que chaque préforme (11, 12) présente des bords de jonction venant en contact par recouvrement avec un bord de jonction d'une autre préforme. (12, 11), lier entre eux les bords de jonction de chaque préforme par couture, extraire le support et insérer à sa place un noyau de moulage avant mise de l'ensemble à l'intérieur d'un moule et injection de résine avant polymérisation de cette dermère selon un procédé RTM / LRI.
Aircelle
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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