METHOD FOR MANUFACTURING AT LEAST ONE PORTION OF A BOX STRUCTURE OF AN AIRCRAFT COMPRISING A FORMING STEP, AND A CENTRAL WINGBOX THUS OBTAINED
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United States of America Patent
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Issued Date -
Aug 24, 2023
app pub date -
Feb 3, 2023
filing date -
Feb 22, 2022
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Abstract
A method for manufacturing at least a portion of a box structure obtained from an outer skin and a plurality of sections each having a joining face in contact with the outer skin. The method comprises a step of positioning the sections on a mold, a step of obtaining a flat fiber preform having a thickness substantially equal to the outer skin, a step of placing a central portion of the fiber preform on the sections positioned on a first face of the mold and a step of forming a lateral extension of the fiber preform to press the fiber preform against a forming surface. A central wingbox obtained by the method is provided and a forming tool for carrying out the method.
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