What are the main application scenarios of aviation aluminum alloy in aerospace?

Civil and military aircraft consume the largest amount of aviation aluminum alloy. Thick plates and thin sheets are used for fuselage and wing skins; large extruded profiles make wing stringers and frame beams; heavy forgings produce landing gear load-bearing blocks and undercarriage joints. Space launch vehicles also adopt this alloy for rocket fairings and satellite support structures. Helicopter rotor clamps, aviation pipeline supports and cabin internal load-bearing frames all rely on its lightweight and high-strength advantages to meet strict aviation weight reduction standards.