METHOD FOR PRODUCING A PART COMPRISING A HOLLOW BODY MADE FROM A COMPOSITE MATERIAL

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...

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Bibliographische Detailangaben
1. Verfasser:	DESJOYAUX, BERTRAND
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	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 dernière selon un procédé RTM / LRI.