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Abstract

The invention concerns a method for manufacturing a thin sheet made of aluminium-based alloy comprising, in percent by weight, 2.3 to 2.7% Cu, 1.3 to 1.6% Li, 0.2 to 0.5% Mg, 0.1 to 0.5% Mn, 0.01 to 0.15% Ti, a quantity of Zn less than 0.3, a quantity of Fe and of Si less than or equal to 0.1% each, and unavoidable impurities at a content less than or equal to 0.05% by weight each and 0.15% by weight in total, wherein, in particular, the hot-rolling input temperature is between 400° C. and 445° C. and the hot-rolling output temperature is less than 300° C. The sheets according to the invention have advantageous mechanical properties and are used, in particular, for the manufacture of aircraft fuselage panels.

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First Claim