Properties and application of 7075 aviation aluminum alloy sheet

Properties And Application Of 7075 Aviation Aluminum Alloy Sheet

2021.08.31

High-strength aluminum alloy is one of the main structural materials in the aviation industry. The development of modern aviation industry requires aviation structural materials to have higher strength, better fracture toughness, and resistance to stress corrosion cracking. 7075 is mainly used to manufacture aircraft structures and other high-stress structural parts that require high strength and corrosion resistance, such as aircraft upper and lower wing panels, stringers, etc. It is also widely used in mold processing, mechanical equipment, tooling and fixtures, aerospace industry, blow molding (bottle) molds, ultrasonic plastic welding molds, golf heads, shoe molds, paper molds, foam molding molds, dewaxing molds, machinery Equipment, used to make high-end aluminum alloy bicycle frames. It was also used for the first time as the body material of the smartphone OPPON3 in 2014.

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7075 mainly contains zinc. It also belongs to the aviation series. It is an aluminum-magnesium-zinc-copper alloy, a heat-treatable alloy, and a super hard aluminum alloy with good wear resistance. 7075 aluminum plate is stress-relieved and will not be deformed or warped after processing. All super-large and super-thick 7075 aluminum plates are all ultrasonically detected, which can ensure that there are no blisters and impurities. The 7075 aluminum plate has high thermal conductivity, which can shorten the forming time and improve work efficiency. The main feature is that the hardness 7075 is a high-hardness, high-strength aluminum alloy, which is often used in the manufacture of aircraft structures. It requires the manufacture of high-stress structural parts and molds with high strength and strong corrosion resistance. After solution treatment, the plasticity is good, the heat treatment strengthening effect is good, it has good strength below 150 degrees, and has particularly good low temperature strength, poor welding performance, and stress corrosion cracking tendency.

7075 aluminum alloy is a cold-treated forging alloy with high strength, far better than mild steel. 7075 is one of the most powerful alloys commercially available. After heat treatment, very high strength characteristics can be achieved. The 7075 material is generally added with a small amount of copper, chromium and other alloys. Among the series, the 7075-T651 aluminum alloy is especially the top grade. It is known as the best product among the aluminum alloys. It has high strength and far better than any mild steel. This alloy also has good mechanical properties and anodic reaction.