Patent ID: 7527757

Claim:
A method of producing a part made of a high-temperature-resistant composite, said composite comprising reinforcing fibers embedded in a heat-cured polyimide resin matrix, said part having an inner platform, an outer platform and at least one full blade connecting said platforms, characterized by the following steps: a) essential portions of the platforms, of the blades and of the blade/platform connection regions are -produced, as separate structural elements, by superposition or winding layers of prepreg fibers; with the exception of external layers that have to form at least a boundary wall for flowing streams of gas through guide vanes; b) said separate structural elements are introduced into an imidization cycle; c) said separate imidized structural elements are assembled; d) the external layers comprising prepreg fibers are added to a pressure and suction side of the blade in order to form the part; e) the part thus formed is placed in a compression curing mold/contermold assembly; and f) the part is cured by subjecting it to compressive forces.