A method for the production of shaped articles made of aluminum alloy of the type 2024

摘要

The invention relates to a method of manufacture of parts that are highly deformed alcumg alloy comprising the following steps: a) casting a plate of the composition (% by weight): cu: 3, 8 - 4, 5 mg: 1, 2 - 1, 5 min: 0, 3 - 0, 5, if 0, 25, fe 0, 20, zn 0, 20, cr 0, 10, zr 0, 10, ti 0, 10 a, b) may be homogenized at a temperature between 460 and 510degrec between 2 and 12 h, and preferably at a temperature between 470 and 500 degrec for a period of between 3 and 6 h, c) hot rolling with an inlet temperature of between 430 and 470degrec, and preferably between 440 and 460degrec, d) to cut the sheets, e) formed by one or several processes such as rolling, drawing - forming, stamping, flow turning or folding, f) in solution between 480 and 500degrec, of a duration comprised between 5 minutes and 1 h, g), the shaping can take place before or after the putting into solution and the quenching. The present invention applies in particular for the manufacture of the aircraft fuselage panels.