Hybrid tooling for the curing of composite pieces

Details Hybrid tooling for the curing of composite pieces Hybrid tooling for the curing of composite pieces

B - Operations, Transporting

29

C

B29C 33/38 (2006.01) B29C 33/10 (2006.01) B29C 33/30 (2006.01) B29C 70/44 (2006.01) B29C 35/02 (2006.01)

Patent

CA 2592592

The invention relates to a hybrid tooling (1) for the curing of composite pieces, comprising a support structure (3) made of a metallic material with high thermal diffusivity, a base plate (31) with an identical surface geometry as that of the piece to be cured, made of INVAR 36 or NILO 36, an intermediate structure (21) between the support structure (3) and the base plate (31) , with a cell configuration, with the sides of each cell sufficiently lightened so as to facilitate the flow of air under the base plate (31) during the curing cycle, made of INVAR 36 or NILO 36, and means of fixing the intermediate structure (21) to the support structure (3) which allow their free expansion.

La présente invention concerne un outillage hybride (1) pour le durcissement de pièces composites, comportant une structure de support (3) faite d~un matériau métallique ayant une diffusivité thermique élevée, une plaque de base (31) ayant une géométrie de surface identique à celle de la pièce devant être durcie, faite en INVAR 36 ou NILO 36, une structure intermédiaire (21) entre la structure de support (3) et la plaque de base (31), ayant une configuration cellulaire, les côtés de chaque cellule étant suffisamment allégés de manière à facilité la circulation de l~air sous la plaque de base (31) lors du cycle de durcissement, faite en INVAR 36 ou NILO 36, ainsi que des moyens de fixation de la structure intermédiaire (21) à la structure de support (3) qui permettent leur libre dilatation.

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