BOX-LIKE MONOLITHIC STRUCTURE FROM COMPOSITE MATERIAL FOR AIRCRAFT FUSELAGES AND WINGS AND METHOD OF MAKING SAID STRUCTURE Russian patent published in 2024 - IPC B64C1/12 B64C3/26 B29C33/38 B29C33/44 B29C70/34 B29D99/00 

Abstract RU 2829526 C2

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engineering. Method of making a box-like monolithic structure for aircraft fuselages and wings includes a step of using two or more auxiliary tools (15), having a shape that complements the shape of cavities (18), and a composition based on a reinforcing material and a polymer. Auxiliary tools (15) allow direct lamination of their outer walls (16) with prepreg material and are made to achieve a flexible elastic state at a temperature below curing temperature and above 50 °C. During curing, curing pressure is applied both outside the formed structure and inside auxiliary tools (15), walls (16) of which become flexible, providing pressure on material of curable prepreg.

EFFECT: simplified manufacturing and higher quality of surface finishing.

9 cl, 7 dwg

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RU 2 829 526 C2

Authors

Stefano Dzhuzeppe Korvalya

Nikola Gallo

Danila Fuggiano

Dates

2024-10-31Published

2021-02-24Filed