Method for fabricating a central caisson of an aircraft wing made from composite material
AssigneeAirbus Operations GmbH
InventorJago Pridie
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Abstract
A method for fabricating a central caisson of an aircraft wing including a frame formed from U-section crossmembers. Formation of at least one crossmember includes forming a stack comprising at least one layer of resin film applied to a layer of dry fibers, pressing this stack to confer on it a U-section form and such as to compress the layers thereof, and pre-polymerization and/or polymerization of the resin of the stack. The manipulated fiber layers are layers of dry fibers, such that manipulation thereof by an automated machine may be effected for a reasonable cost and at a high throughput. Deposition of resin films carried by removable leaves, i.e., of which one of the faces is not adhesive, likewise facilitates manipulation by an automated installation.
Claims20
A method for fabricating a central caisson of an aircraft wing, the central caisson comprising a frame formed from U-section crossmembers, wherein formation of at least one of the U-section crossmembers comprises:
- providing one or more layers of dry fibers;
- providing a layer of a resin, which is in a form of a resin film and comprises a removable leaf that bears the resin film;
- applying the layer of the resin to the one or more layers of the dry fibers to form a stack;
- removing, when the layer of the resin is in place on the one or more layers of the dry fibers, the removable leaf from the resin film;
- and
- hot-pressing the stack using a press to conjointly confer on the stack a U-section form and to compress the layers of the stack.
A method for fabricating a central caisson of an aircraft wing, the central caisson comprising a frame formed from U-section crossmembers, wherein formation of at least one of the U-section crossmembers comprises:
- providing layers of dry fibers;
- providing layers of a resin, each of which are in a form of a resin film;
- assembling the layers of the dry fibers with the layers of the resin to form a stack;
- arranging the stack on a lower part of a press, the lower part of the press having a first cavity formed therein;
- arranging an upper part of the press above the lower part of the press, the upper part of the press having a second cavity formed therein;
- actuating the press to sandwich the stack between the upper part of the press and the lower part of the press, such that the stack has a U-section shape.
Dependencies are inferred from the claim text.