Process for manufacturing a structural part made of an organic matrix composite and part obtained
AssigneeMessier-Bugatti-Dowty
InventorsPatrick Dunleavy, Richard Masson
Life of this patent
Estimating the term…
Abstract
A process for manufacturing a structural part made of an organic matrix composite including: production of a fibrous structure, forming a preform by braiding rovings of a fibrous material on a mandrel that includes a reinforcement in its axial extension, impregnation of the preform with an organic resin; and curing of this resin, the reinforcement, forming the cover, having a bore with an axis perpendicular to the axis for housing a connecting member. Barbs, some of which are projecting, are incorporated into the reinforcement over at least part of the surface of which lying on either side of the bore, the braiding being carried out around the barbs so that the rovings at least partly criss-cross around the barbs.
Claims10
A process of manufacturing a structural component with an end fitting made from an organic matrix composite, the process comprising:
- providing a mandrel with a main axis;
- providing a reinforcement at an end of the mandrel to present an assembly, the reinforcement including a bore which pierces through main faces of the reinforcement, the bore including an axis perpendicular to the main axis of the mandrel;
- inserting pins into the reinforcement such that the pins project outwardly from the main faces of the reinforcement, all of the pins being perpendicular to the main axis of the mandrel and to the main faces of the reinforcement;
- braiding rovings of a fibrous material onto the assembly, the braiding of the rovings in a region of the reinforcement crisscrossing around the pins forming a cross shape around the pins to produce a preform;
- impregnating the preform with an organic resin;
- and
- curing the impregnated preform,
- wherein the bore houses a connecting member.
Dependencies are inferred from the claim text.