Lobed tubular piece made of a composite with unidirectional fibers
AssigneeSafran Nacelles
InventorsBertrand Desjoyeaux, Davi Silva De Vasconcellos, Benjamin Provost
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Abstract
A method for manufacturing a fibrous tubular structure including lobes, in which fibers are draped/deposited on a mandrel having a shape corresponding to that of the fibrous structure, includes draping/deposition carried out such that at least one group of fibers has a same orientation with respect to the axis (A) of said fibrous structure, then, the fibers having been draped over an angular sector less than the total periphery of the mandrel, one of the ends of the fibrous structure is separated from the mandrel in order to allow the continuation of the draping on the same mandrel.
Claims11
A method for manufacturing a tubular fibrous structure with lobes, the method comprising:
- drape-molding/depositing fibers on a mandrel having a shape corresponding to that of the tubular fibrous structure, the drape-molding/depositing being performed so that at least one group of fibers has a same orientation with respect to a longitudinal axis (A) of said tubular fibrous structure,
- wherein fibers from the at least one group of fibers are drape-molded/deposited over an angular sector smaller than a total periphery of the mandrel to form a discrete segment of fibers on the angular sector, an end of the fibrous structure being separated from the mandrel in order to enable further drape-molding on the mandrel and formation of the tubular fibrous structure with lobes.
Dependencies are inferred from the claim text.