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AssigneeSafran Aircraft Engines
InventorsDominique Michel Serge Magnaudeix, Raoul Jaussaud
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An injection tooling is configured to inject a polymer resin into a fiber preform for fabricating a part in the form of a body of revolution out of composite material, the part having an internal cavity with back-draft. In order to enable the part to be unmolded after the polymer resin has been injected and polymerized, the tooling includes, arranged at least in the internal cavity, firstly a sectorized ring made up of at least three mutually touching inserts including one forming a keystone, the ring having an outside surface that matches the internal cavity with back-draft and an inside surface that presents natural draft, and secondly a conical drum secured to the inside surface of the sectorized ring to support it and that is withdrawn, once separated from the sectorized ring, relying on the natural draft created by the inside surface of the sectorized ring.
An injection tooling for injecting a polymer resin into a fiber preform for fabricating a part in the form of a body of revolution out of composite material, the part having an internal cavity with back-draft, wherein, in order to enable said part to be unmolded after said polymer resin has been injected and polymerized, the tooling includes, arranged at least in said internal cavity, firstly a sectorized ring made up of at least three mutually touching inserts including one forming a keystone, the sectorized ring having an outside surface that matches said internal cavity with back-draft and an inside surface that presents natural draft, and secondly a conical drum secured to said inside surface of said sectorized ring to support it and that is withdrawn, once separated from said sectorized ring, relying on said natural draft created by said inside surface of said sectorized ring.
Dependencies are inferred from the claim text.