The main features and uses of aluminum plate for aerospace

Let's talk about the main features and uses of aluminum plate for aerospace. With the advancement of science and technology, aerospace aluminum plate is developing in the direction of large-scale, integral, thin-walled flattening, high size refinement, and complex shape, and the application range has been promoted from civil materials to aerospace profiles, and the main characteristics of large-scale profiles are: (1) large-scale and integral; (2) thin-walled and lightweighting; (3) Precision of section size and shape and position tolerance; (4) Homogenization and quality of microstructure properties. Due to the above characteristics of large profiles, it brings a series of difficulties to the extrusion process. Large extruded profiles for aerospace mainly include: integral ribbed wall panels, I-beams, wing girders, comb profiles, hollow girder profiles, etc. It is mainly used as the force-bearing structural components of aircraft, spacecraft and other aerospace vehicles, as well as the special-shaped hollow rotor girder and airstrip of helicopters.

Next, we will introduce some common aluminum plates for aerospace and large extruded profiles.

(1) Low-strength aluminum alloy: industrial pure aluminum, 3A21, 5005, 5A02, 5A03, 5086 and other heat treatment is not strengthened, and its semi-finished products are used in the annealed state and after cold work hardening.

(2) Medium strength aluminum alloys are divided into two groups: heat treatment non-strengthifiable aluminum alloys (5A05, 5A06, 5B06) and heat treatment strengthenable aluminum alloys (6A02, 2A70, 2A06), etc.

(3) High-strength aluminum alloys 7A04 and 2A12 can be sharply strengthened during heat treatment.

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