7075 aircraft aluminum has corrosion resistance, excellent physical properties and anodizing reflection. The fine crystals make the deep drilling characteristics stronger, the wear resistance of special tools is improved, and the external thread rolling is more different from the weight. After aging treatment, the plastic deformation is good, and the actual effect of heat treatment process is particularly good. It has high compressive strength below 150 °C, and has particularly good ultra-low temperature compressive strength, poor welding characteristics, and intergranular corrosion cracking tendency. Bipolar aging improves SCC resistance.
7075 aircraft aluminum alloy is a kind of strength deformed aluminum alloy, which is currently used in the aviation industry. It has good mechanical and processing properties, good plasticity after solution treatment, and good heat treatment strengthening effect. Generally, it has high strength and good toughness below 150 ° C (or even higher), and is an ideal structural material. Compared with ordinary aluminum alloys, 7075 aluminum alloy for aircraft have higher requirements on strength, hardness, toughness, fatigue resistance and plasticity. Due to the light weight and light weight of aircraft aluminum, it has replaced steel and occupies the dominant position of current aviation materials. Aviation equipment has higher requirements for aluminum, and is an important application market for aluminum. 7075 aluminum plate is mainly used in wing skin, wing truss, upper and lower edge strips of wing spar, web, fuselage truss, seat slide, keel beam, side frame, fuselage skin, lower fuselage panel, main floor stringers, etc.
7075 aircraft aluminum plate is mainly used in airline positioning devices, trucks, vertical engineering buildings, ships, pipelines and engineering buildings that must have compressive strength, forgeability, and corrosion resistance. Such as injection molding film, golf head, shoe film, airport parts, instrument panel shafts, transmission gears and shafts, fuse parts, etc. The key industrial production parts such as turbocharger, key, airport and even cruise missile parts and jump valve parts are all made of 7075 aluminum plate, which is a very common aluminum alloy metal composite material in industrial production.