Method for manufacturing a composite material part having a cellular structure and corresponding part
AssigneeSafran
InventorsNicolas Pierre LANFANT, Patrick DUNLEAVY
Life of this patent
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Abstract
A method for manufacturing a composite material part having a cellular structure that includes at least one cell delimited by walls. The method includes supplying at least a first core, providing a web of a first fibrous reinforcement comprising a plurality of long discontinuous fibers randomly distributed in a plane, and producing at least one strip of the first fibrous reinforcement. The method further includes producing a second fibrous reinforcement in the shape of a sock, inserting the first core into the sock, draping the strip around the sock containing the first core, placing the sock containing the first core and the wrapped strip in a mold, and thermocompression.
Claims12
A method for manufacturing a part made of composite material comprising a cellular structure, in particular for a turbomachine, the cellular structure comprising at least one cell delimited by walls and the method comprising the steps of:
- supplying at least one first core,
- providing a lap of a first fibrous reinforcement comprising a plurality of discontinuous long fibers randomly distributed in a plane,
- producing at least one strip of the first fibrous reinforcement,
- producing a second fibrous reinforcement in a form of a continuous braided sock and obtained by braiding, the second fibrous reinforcement comprising continuous long fibers,
- inserting the first core into the sock,
- draping the strip of the first fibrous reinforcement around the sock containing the first core,
- placing an assembly formed by the sock containing the first core and the strip draped around the sock in a mold, and
- thermocompressing the assembly installed in the mold.
The manufacturing method according to claim 8, further comprising the step of placing at least one third sock segment around at least two assemblies of cores, each contained in a sock segment, which are draped with at least one strip, wherein the two assemblies are juxtaposed.
Dependencies are inferred from the claim text.