Process for manufacturing a stiffener of composite material
AssigneeAirbus Operations GmbH
InventorsDenis DE MATTIA, Olivier GUILLEMOT
Life of this patent
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Abstract
A process for manufacturing a stiffener made of composite material with an inside surface of a concave shape, includes producing a flat strip (18) that includes at least one layer of fibers; heating it to be able to deform it; connecting one of the lateral edges of the strip (18) to a rotary mandrel (36) in such a way as to cause a winding of the strip on the mandrel (36) during its rotation, whereby the mandrel (36) has an outside surface (46) of which at least one part corresponds to the inside surface of the stiffener to be produced; and exerting tension at the other lateral edge of the strip (18) in a direction that is opposite to the direction of the movement of the strip (18) caused by the winding on the rotary mandrel (36).
Claims15
Process for manufacturing a stiffener made of composite material with an inside surface of a concave shape, which comprises:
- producing a flat strip (18) that comprises at least one layer of fibers (20), heating it to be able to deform it, connecting one of the lateral edges of the strip (18) to a rotary mandrel (36) in such a way as to cause a winding of the strip on said mandrel (36) during its rotation, whereby said mandrel (36) has an outside surface (46) of which at least one part corresponds to the inside surface of the stiffener to be produced, and exerting tension at the other lateral edge of the strip (18) in a direction that is opposite to the direction of the movement of the strip (18) caused by the winding on the rotary mandrel (36).
Dependencies are inferred from the claim text.