PROCESS FOR SHAPING PREFORMS IN THE MANUFACTURE OF THERMOSTRUCTURAL COMPOSITE MATERIAL COMPONENTS, ESPECIALLY WEB-LIKE COMPONENTS OR PANELS

摘要

A fibrous preform (10) of the component to be manufactured is conformed in the desired shape with the desired degree of compacting, prior to densification by chemical vapor deposition. According to the invention, the conformation is achieved by linking the preform (10) onto a rigid shaping device (12) by means of threads (30) that traverse the preform (10) and pass through holes (14) in the shaping device. The linking threads (30) are made of carbon or ceramic. Prior to the linking, a covering layer (16) may be arranged on the face of the preform (10) opposite to the one turned towards the shaping device.