Aerospace Heavy Plates And Fuselage Skins 7075 T651

7075 T651 aluminum alloy is a high-strength aluminum alloy widely used in the aerospace field, especially in structural parts such as heavy plates and fuselage skins. 7075 aluminum belonging to the Al-Zn-Mg-Cu series of super-hard aluminum.

Properties of 7075 t651 aerospace aluminum plate:

- High strength:

7075-T651 aluminum plate belongs to the aluminum-zinc-magnesium-copper series alloy, which is one of the high-strength aluminum alloys. Its tensile strength is usually between 540MPa-560MPa, and its yield strength is about 500MPa, which is much better than mild steel and can withstand various stresses generated by aircraft during flight.

- Good fatigue strength:

The fatigue strength of this alloy is good, and it is suitable for applications that are subjected to repeated loads, such as aircraft wings, fuselages, etc. During the multiple take-off and landing cycles of the aircraft, it can maintain good performance and is not prone to fatigue damage.

- Excellent machining performance:

Easy to perform machining operations such as turning and milling, able to meet the machining requirements of complex shapes of aerospace parts, and can be processed into various high-precision aerospace heavy plates and fuselage skin parts.

- Good low temperature performance:

Can still maintain high strength and toughness in low temperature environment, which is crucial for the safe flight of aircraft in high-altitude and low-temperature environment.

- Heat treatment and strengthening:

Through the T6 heat treatment process (artificial aging after solution treatment), coupled with the tensile stress relief treatment of T651, extremely high strength and good dimensional stability can be obtained to prevent material deformation.

Application field of 7075 T651 aluminum plate:

- Aerospace heavy plate

Wing structure: The wing needs to withstand the lift and various complex stresses during the flight of the aircraft. The high strength and good fatigue performance of 7075-T651 aluminum plate make it an ideal material for the upper and lower wing panels, girders, bulkheads and other parts of the wing.

Fuselage frame: used to manufacture the fuselage beams, bulkheads and other structural parts, which can reduce the weight of the aircraft while ensuring the strength of the fuselage structure, improve fuel efficiency and flight performance.

Engine parts: such as the structural parts of the engine nacelle, fan blades, etc., require materials with high strength, good wear resistance and corrosion resistance. 7075-T651 aluminum plates can meet these requirements.

- Fuselage skin

Integral skin: The fuselage skin of modern aircraft is increasingly adopting an integrated design. 7075-T651 aluminum plates have good machinability and formability, and can be processed into large integral skin parts, reducing the fuselage joints and improving the aircraft's aerodynamic performance and structural strength.

Strengthened skin: In some parts where structural strength needs to be strengthened, such as the connection area between the fuselage and the wing, around the landing gear door, etc., 7075-T651 aluminum plates are used to make reinforced skins to withstand greater stress.

- Other structural parts:

7075 aluminum alloy can also be used to manufacture other structural parts in aerospace, such as brackets, frames and connectors.

The importance of 7075 T651 aluminum alloy in the aerospace industry cannot be ignored. Its high strength, good corrosion resistance and processability make it an ideal material for manufacturing heavy plates and fuselage skins. This aluminum alloy helps improve the overall performance and safety of aircraft.