Method for producing a fibre composite component for...

B - Operations – Transporting – 29 – C

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B29C 33/50 (2006.01) B29C 70/44 (2006.01) B29D 24/00 (2006.01) B64C 1/00 (2006.01)

Patent

CA 2655709

Method and moulding core for producing a fibre composite component (1), in particular for aerospace, having the following method steps: forming a moulding core (4) that comprises a predetermined number of hollow bodies (7) for defining an external geometry of the moulding core (4), the hollow bodies (7) being designed such that they extend in the longitudinal direction of the moulding core (4) and are expandable elastically at least in their lateral direction, and are fixed to one another, the formed moulding core (4) having a flexible outer layer (16) for smoothing the contour of its outer surfaces, and a core sleeve (9) surrounding the moulding core (4), for sealing the moulding core (4) from the fibre composite component (1) to be produced; placing at least one fibre semi-finished product (3), at least in places, on the moulding core (4) that has been formed, in order to shape at least one moulding section (14) of the fibre composite component (1) to be produced; and applying heat and/or pressure to the at least one moulding section (14) in order to produce the fibre composite component (1).

L'invention concerne un procédé et un noyau de moulage pour la fabrication d'un composant composite fibreux (1), en particulier pour l'industrie aérospatiale, comportant les étapes de procédé suivantes consistant à : façonner un noyau de moulage (4) qui comprend un nombre prédéterminé de corps creux (7) pour définir une géométrie externe du noyau de moulage (4), les corps creux (7) étant agencés de telle sorte qu'ils s'étendent dans la direction longitudinale du noyau de moulage (4) et sont extensibles élastiquement au moins dans leur direction latérale, et sont fixés les uns aux autres, le noyau de moulage formé (4) ayant une couche externe flexible (16) pour lisser le contour de ses surfaces externes, et un manchon de noyau (9) entourant le noyau de moulage (4), pour rendre le noyau de moulage (4) étanche au composant de composite fibreux (1) devant être obtenu ; placer au moins un produit semi-fini fibreux (3), au moins par endroits, sur le noyau de moulage (4) qui a été formé, de façon à façonner au moins une section de moulage (14) du composant de composite fibreux (1) devant être obtenu ; et appliquer de la chaleur et/ou une pression sur la section de moulage (14) de façon à obtenir le composant de composite fibreux (1).

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