Patent ID: 7052632
Filing Date: 2006-05-30
Classification: B29C,B32B,D04H,Y02T,Y10T

Abstract:
1. A method of making a composite material part comprising fiber reinforcement densified by a matrix, the method including: making a fiber preform constituting the fiber reinforcement by superposing fiber plies in a stack and progressively bonding the superposed fiber plies by needling; during the making of the fiber preform and before completion of the process of needling of all the fiber plies constituting the fiber preform, dusting a powder on at least some of the plies, the powder comprising at least one resin in powder form that is partially cross-linked, obtaining a consolidated preform by terminating linking of said resin after superposing and needling of a last superposed fiber ply; and, subsequently, densifying the needled and consolidated preform by introducing a matrix material into it.