PROCESS FOR MANUFACTURING STRUCTURES IN THERMOSETTING COMPOSITE MATERIALS BY ASSEMBLY OF COMPOSITE ELEMENTARY PARTS MOLDED BY INJECTION INFUSION OF LIQUID RESIN

摘要

The present invention relates to a method for producing a structural part (1) made of composite material by injection-infusion of a thermosetting liquid resin in a fibrous reinforcement, the structural part comprising a first element (10) and at least a second one. element (20). Each of the first element and of the at least one second element is produced in an intermediate state during a separate injection-infusion step associated with a partial curing stopped at a rate of crosslinking of the resin below one. gel point of said resin; The first element and the at least one second element are maintained in a tool, in a relative position and in a shape that said elements must have in the structural part to be produced, during a simultaneous complete cooking phase outside the autoclave to obtain a rate desired polymerization of the resin of said first member and the resin of said at least one second member. The invention also relates to a structural part (1) produced by the method.