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AssigneeSafran Aircraft Engines
InventorsMathieu Julien CHARLAS, Adrien Francis PAIXAO
Estimating the term…
A method for repairing a part made of composite material includes producing a recessed section by removing the composite material at a damaged area, producing grooves extending on the two faces of the part from edges of the recessed section, producing orifices in the part opening out into the grooves, tree-dimensional weaving of a filling part fiber preforms including a central section having a shape corresponding to the shape of the recessed section and fiber bundles extending from the central section, placing the filling preforms respectively on either face of the part with the fiber bundles in the grooves on the faces of the part and in the orifices such that the fiber bundles open out into the grooves present on the opposite face of the part, impregnating the filling fiber preforms with a precursor resin of a matrix, transforming the resin into a matrix to obtain a filling part.
A method for repairing a part made of composite material comprising a fiber reinforcement having a three-dimensional weaving between a plurality of warp yarns and a plurality of weft yarns, said fiber reinforcement being densified by a matrix, the method comprising:
A part made of composite material comprising a fiber reinforcement having a three-dimensional weaving between a plurality of warp yarns and a plurality of weft yarns, said fiber reinforcement being densified by a matrix, wherein the fiber reinforcement densified by the matrix includes at least one recessed section extending from a first face of the composite material part to a second face of said part, a filling part made of composite material is present in a free volume of the composite material part delimited by said at least one recessed section, the composite material part comprising a first plurality of grooves extending on the first face of said part from edge(s) of the recessed section opening out onto the first face and a second plurality of grooves extending on the second face of said part from the edge(s) of the recessed section opening out onto the second face, the composite material part further comprising a plurality of orifices extending within the thickness of the composite material part, each orifice opening out both into a groove of the first plurality of grooves and into a groove of the second plurality of grooves, the filling part comprising at least one filling part fiber preform comprising a central section present within the volume of the recessed section and a plurality of fiber bundles extending from the central section, the central section of said at least one preform having a three-dimensional weaving, a first portion of the fiber bundles of said at least one fiber preform being present in the grooves of the first plurality of grooves present on the first face of the composite material part and in the orifices of the plurality of orifices such that the fiber bundles of the first portion of fiber bundles of said at least one preform open out into the grooves of the second plurality of grooves a second portion of the fiber bundles of said at least one fiber preform being present in the grooves of the second plurality of grooves present on the second face of the composite material part and in the orifices of the plurality of orifices such that the fiber bundles of the second portion of fiber bundles of said at least one preform open out into the grooves of the first plurality of grooves.
Dependencies are inferred from the claim text.