Aerospace aluminum is a kind of ultra-high strength deformed aluminum alloy, which is now widely used in the aviation industry. It has good mechanical and processing properties, good plasticity after solid solution treatment, good heat treatment strengthening effect, generally has high strength below 150℃ (or even higher), good toughness, and is an ideal structural material.　

　Compared with common aluminum alloy, aluminum alloy for aircraft has higher requirements for strength, hardness, toughness, fatigue resistance and plasticity. Due to the light quality and remarkable light weight effect of aviation aluminum, it has replaced steel and occupied the dominant position of current aviation materials. Aviation equipment has high requirements for aluminum, which is an important high-end application market for aluminum.

Today, the world's aviation aircraft structure with aluminum alloy is mainly high strength 2 series (2024, 2017, 2A12, etc.) and ultra-high strength 7 series (7075, 7475, 7050, 7A04, etc.), in addition to some 5 series (5A06, 5052, 5086, etc.) and 6 series (6061, 6082, etc.) and a small number of other series of aluminum.　

　Aerospace aluminum is mainly used in airfoil skin, airfoil long truss, upper and lower edge of airfoil beam, web, fuselage long truss, seat slide, keel beam, side frame, fuselage skin, lower fuselage wall panel, main floor truss and other parts.　

　1、Hard aluminum: aluminum-magnesium-copper alloy. The most widely used aluminum alloy in the aviation industry. Commonly used 2024, 2A12, 2017A, strength, toughness, fatigue resistance is good, plasticity is good. Used to manufacture skins, spacer frames, wing ribs, etc.　

　2、Super hard aluminum: aluminum, zinc, magnesium and copper alloy. Commonly used 7075, 7A09, high strength limit and yield strength, bearing large loads, used to manufacture the wing on the airfoil skin, beam, etc.

　　3, rust-proof aluminum alloy: commonly used aluminum magnesium alloy 5A02, 5A06, 5B05. has high corrosion resistance, fatigue resistance, good plasticity, weldability. Used to manufacture mailboxes, oil pipes, etc.　　

4, forging aluminum alloy, commonly used 6A02, high hardness, has good corrosion resistance. Manufacture engine parts, joints, etc.　　

5、Cast aluminum alloy, small specific gravity, high corrosion resistance, heat resistance, manufacturing engine cases, etc.

 

 


 

Previous page: heat treatment    Next page : induction heating