Patent ID: 11872769
Assignee: AIRBUS OPERATIONS S.L.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. A method for manufacturing a connecting member configured to contribute to the connection between a center wing box of an aircraft and a wing of the aircraft, the method comprising the steps of:
manufacturing a plurality of preforms made of composite material forming the connecting member, wherein the manufacturing step comprises:
a first manufacturing substep to manufacture a main preform of the plurality of preforms in the form of a strip having a first longitudinal axis and having a first surface opposite to a second surface; and
four second manufacturing substeps to manufacture a first L-shaped preform, a second L-shaped preform, a third L-shaped preform, and a fourth L-shaped preform of the plurality of preforms, each L-shaped preform corresponding to an L-shaped profile section having a second longitudinal axis, the transverse cross section of which is L-shaped comprising a first web perpendicular to a second web; and

assembling the plurality of preforms by heat treatment in order to form the connecting member, the assembly step comprising:
a preforms-assembly substep comprising assembling the main preform and the first, second, third, and fourth L-shaped preforms manufactured in the first manufacturing substep and the second manufacturing substep, the main preform and the first, second, third, and fourth L-shaped preforms being assembled so that the connecting member formed by the main preform and the first, second, third, and fourth L-shaped preforms has a cruciform transverse cross-section by ensuring that:
the first web of the first L-shaped preform is butted against the first web of the second L-shaped preform,
the second web of the first L-shaped preform and the second web of the second L-shaped preform are butted against the first surface of the main preform,
the first web of the third L-shaped preform is butted against the first web of the fourth L-shaped preform,
the second web of the third L-shaped preform and the second web of the fourth L-shaped preform are butted against the second surface of the main preform,
the first longitudinal axis of the main preform is parallel to the second longitudinal axes of the first, second, third, and fourth L-shaped preforms, and

heat treating the main preform and the first, second, third, and fourth preforms assembled in the assembly step.