Aerospace aluminum plate is a kind of ultra-high strength deformation aluminum alloy plate, has good mechanical and machining properties, good plasticity after solution treatment, good heat treatment strengthening effect, generally at 150℃(even higher) below high strength and hardness, good toughness, is an ideal structural material.
Compared with ordinary aluminum alloy used in aircraft, it has higher requirements for strength, hardness, toughness, fatigue resistance and plasticity. Due to its light weight and significant lightweight effect, aviation aluminum has replaced steel and occupied the dominant position of current aviation materials. Aerospace equipment has high requirements on aluminum plate, which is an important high-end application market of aluminum alloy plate.
There are many kinds of aluminum alloy plates used in airplanes. Nowadays, aluminum alloys used in aviation aircraft structure in various countries are mainly high strength 2 series (2024 aluminum plate, 2017 aluminum rod, 2A12 aluminum plate, etc.) and ultra-high strength 7 series (7075 aluminum plate, 7475 aluminum plate, 7050 aluminum plate, 7A04 aluminum rod, etc.). In addition, there are some 5 series (5A06, 5052 aluminum plate, 5086, etc.) and 6 series (6061 aluminum plate, 6082 aluminum plate, etc.) and a small amount of other series aluminum.
Aerospace aluminum is mainly used in wing skin, wing surface stringer, wing SPAR upper and lower edge strips, web, fuselage stringer, seat rails, keel beam, side frame, fuselage skin, fuselage lower siding, main floor stringer, etc.
1, hard aluminum: aluminum magnesium copper alloy. The most widely used aluminum alloy in the aviation industry. Commonly used 2024 aluminum plate, 2A12 aluminum plate, 2017A aluminum bar, good strength, toughness, fatigue resistance, good plasticity. Used to make skin, frame, ribs, etc.
2, super hard aluminum: aluminum zinc magnesium copper alloy. Commonly used 7075 aluminum plate, 7A09 aluminum rod, high strength limit and yield strength, large load, used to manufacture wing surface skin, girder, etc.
3, rust-proof aluminum alloy: commonly used aluminum and magnesium alloy 5A02, 5A06, 5B05. It has high corrosion resistance, fatigue resistance, good plasticity and weldability. Used to make mailboxes, oil pipes, etc.
4. Forged aluminum alloy, commonly used 6A02, has high hardness and good corrosion resistance. Manufacture engine parts, fittings, etc.
5, Casting aluminum alloy, small specific gravity, high corrosion resistance, heat resistance, manufacturing engine casing, etc.
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