[Aluminium Network] Aerospace aluminum is an ultra-high strength deformable aluminum alloy that is widely 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 below 150°C (or even higher) and good toughness. It is an ideal structural material.
Aircraft aluminum alloys have higher requirements for strength, hardness, toughness, fatigue resistance and plasticity than ordinary aluminum alloys. Due to its light weight and significant weight savings, aviation aluminum has replaced steel and dominated the current aerospace materials. Aerospace equipment has a high demand for aluminum materials and is an important high-end application market for aluminum materials.
There are many kinds of aluminum alloys used in aircraft. The aluminum alloys used in aviation aircraft structures in the world today are mainly high-strength 2 series (2024, 2017, 2A12, etc.) and ultra-high-intensity 7 series (7075, 7475, 7050, 7A04, etc.), as well as some 5 series (5A06). , 5052, 5086, etc.) and 6 series (6061, 6082, etc.) and a small amount of other series aluminum materials.
Aerospace aluminum is mainly used in airfoil skins, airfoil skins, wing spar upper and lower rims, webs, fuselage bows, seat rails, keel beams, side frames, fuselage skins, and underbody fuselage Wall panels, main floor purlins, etc.
1, hard aluminum: aluminum magnesium alloy. The aviation industry uses a wider range of aluminum alloys. Commonly used 2024, 2A12, 2017A, strength, toughness, fatigue resistance and good plasticity. Used to make skin, bulkheads, ribs, etc.
2, super hard aluminum: aluminum zinc magnesium alloy. Commonly used 7075, 7A09, high strength limit and yield strength, under load, used to make wings on the wing skin, beams and so on.
3, rust-proof aluminum alloy: commonly used aluminum-magnesium alloy 5A02, 5A06, 5B05. Has high corrosion resistance, fatigue resistance, good plasticity, and weldability. Used to make mailboxes, tubing, etc.
4, forging aluminum alloy, commonly used 6A02, high hardness, with good corrosion resistance. Manufacturing engine parts, joints, etc.
5, casting aluminum alloy, a small proportion, corrosion resistance, high heat resistance, manufacturing engine casing and so on.
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