Difference between aviation aluminum plate and ordinary aluminum plate

Aviation aluminum plate is an ultra-high-strength deformed aluminum alloy with good mechanical properties and processing properties, easy to shape, good heat treatment strengthening effect, high strength at high temperature (150 ° C or higher), and good toughness.

Compared with ordinary aluminum plate, aviation aluminum plates have higher requirements on strength, hardness, toughness, fatigue resistance and plasticity. Due to the light weight and light weight effect of aviation aluminum plate, it has replaced steel and occupied the dominant position of current aviation materials.

There are many kinds of aluminum plates used on airplanes. The aluminum plates used in aviation aircraft structures in the world today are mainly high-strength 2 series (2024, 2017, 2A12, etc.) and ultra-high-strength 7 series (7075, 7475, 7050, 7A04, etc.), and some 5 series (5A06, 5052, 5086, etc.), 6 series (6061, 6082, etc.) and a small amount of other series of aluminum.

Aerospace aluminum plate is mainly used in airfoil skins, airfoil long rafts, spar upper and lower edge strips, webs, fuselage long rafts, seat rails, keel beams, side frames, fuselage skins, lower fuselage wall panels, main floor rafters and other parts.

1, hard aluminum: aluminum magnesium copper alloy. The most widely used aluminum plate in the aviation industry. Commonly used aluminum plates are 2024, 2A12, 2017A, they are with strength, toughness, fatigue resistance and good plasticity and mainly used to make skins, partitions, ribs, etc.

2, super hard aluminum: aluminum zinc magnesium copper alloy. Commonly used aluminum plates are 7075, 7A09, they are high strength limit and high yield strength, with a large load, used to make the upper wing skin and girders on the wing.

3, anti-rust aluminum alloy: commonly used aluminum-magnesium plates are 5A02, 5A06 and 5B05. It has high corrosion resistance, fatigue resistance, good plasticity and weld-ability, so they are used to make mailboxes, tubing, etc.

4, forged aluminum alloy, commonly used aluminum plate is 6A02, with good corrosion resistance and high hardness, used to manufacture of engine parts, joints, etc.

5, cast aluminum alloy is characterized by high heat resistance, low density, strong corrosion resistance, generally used in the manufacture of engine casings.