Verfahren zur Consolidierung/gleichzeitigen Herstellung von mehreren Verbundstoffen

摘要

A preform for a composite article is manufactured by depositing reinforcing fibre (204) in a portion of the grooves (203) formed in sheets of foil (202) of the matrix material. Material (206, 208) compatible with the foil is disposed near the unfilled grooves and the foils are then stacked. When the preform is consolidated by pressure and temperature to form the composite, the compatible material fills the grooves which do not contain fibre, ensuring uniform debulking and avoiding lateral migration of the fibres or the formation of voids. The reinforcement may thus be distributed unevenly across the volume of the composite while identical groove patterns are used in all the foils. Non-reinforced areas may be readily machined. The compatible material may be a powder, wire or a sheet layed across the top of the unfilled grooves (203).