| 摘要 |
<p>An aircraft structure component has a rolled, extruded, or forged product, as a starting material, made of an alloy containing (wt.%): copper (4.6-5.3), magnesium (0.10-0.50), manganese (0.15-0.45), silicon (less than 0.10), iron (less than 0.15), zinc (less than 0.20), chromium (less than 0.10), other elements (less than 0.05 each, less than 0.15 total), and aluminum (balance). An aircraft structure component, particularly a lower wing component of an aircraft, consists of a rolled, extruded, or forged product, as a starting material, which is made of an alloy containing (wt.%): copper (4.6-5.3), magnesium (0.10-0.50), manganese (0.15-0.45), silicon (less than 0.10), iron (less than 0.15), zinc (less than 0.20), chromium (less than 0.10), other elements (less than 0.05 each, less than 0.15 total), and aluminum (balance) treated by solution heat treating, quenching, controlled tension to more than 1.5 % permanent deformation, and aging. An Independent claim is also included for a process of manufacturing the aircraft structure component, including casting a plate or billet with the alloy composition, homogenizing the plate or billet, hot transforming the plate by rolling or the billet by extrusion or forging to obtain a product thicker than 10 mm, quenching the hot transformed product; and solution heat treating, controlled tensioning, aging, and machining the product.</p> |
