7050 aluminum alloy sheets belong to the family of high-strength aluminum alloys and plays a key role in the aerospace field. Its main alloying elements are zinc, magnesium, and copper. By carefully adjusting the proportions of each element and combining it with a specific heat treatment process, a series of excellent properties have been created.
Excellent mechanical properties
High strength: 7050 aluminum alloy has amazing strength. Taking T7451 state as an example, the tensile strength can reach 572MPa and the yield strength can reach 455MPa, which enables it to easily withstand the huge loads in high-stress environments such as aerospace. Aircraft wing spars, skins, trusses, landing gears and other high-stress structural parts are often made of 7050 aluminum alloy, providing a solid guarantee for the safe flight of aircraft.
Good toughness: It has high strength and good toughness, which effectively avoids brittle fracture when subjected to impact loads, greatly improving structural safety.
Corrosion resistance: 7050 aluminum alloy has excellent resistance to stress corrosion cracking and exfoliation corrosion. It can maintain stable performance for a long time in a humid and salty harsh environment, which is crucial for aircraft flying in complex environments.
Excellent processing performance
7050 aluminum alloy can be formed by a variety of processes such as extrusion, forging, and die forging, and is suitable for manufacturing complex structural parts. However, due to its high strength, appropriate tools and process parameters must be selected during processing.
Application fields
Aerospace: It is a favorite in the aerospace field. In addition to being used for key aircraft structural parts, it is also widely used in the manufacture of spacecraft components such as satellites and missiles, helping spacecraft reduce weight and improve performance.
Industrial field: It is commonly used in mold processing, mechanical equipment frames, and high-load tooling fixtures. Its high strength and good fatigue resistance can ensure that molds and tooling maintain accuracy and stability under long-term high-load use.
Other fields: 7050 aluminum alloy also plays a big role in military equipment, racing car parts and other scenes with extremely high requirements for material strength and corrosion resistance. For example, military equipment needs to operate reliably in various harsh environments, and 7050 aluminum alloy can meet this demand; racing cars pursue lightweight and high strength, and 7050 aluminum alloy helps to improve racing performance.
2219 aluminum alloy is an aluminum alloy with aluminum as the matrix and copper as the main alloying element. It performs well in fields that require high temperature resistance and high strength.
Outstanding performance characteristics
High strength and high temperature resistance: After proper heat treatment, the tensile strength of 2219 aluminum alloy sheets can reach 440-490MPa, and the yield strength can reach 345-390MPa (T6 heat treatment state). At the same time, it can maintain stable mechanical properties at higher temperatures and is suitable for high temperature working environments below 315℃.
Good toughness: Similar to 7050 aluminum alloy, 2219 aluminum alloy has a certain toughness and is not easy to break when subjected to impact, ensuring structural safety.
Physical performance advantages: The density is about 2.84g/cm³, which is lighter than steel materials and can effectively reduce the overall weight of the equipment; it has good thermal conductivity, which is conducive to the rapid conduction of heat in situations where heat dissipation is required.
Welding performance: It is easy to arc weld and spot weld. Although the brazing performance is poor, arc welding and spot welding are sufficient to meet the connection requirements in many application scenarios.
Machining technology points
Casting: Sand casting, mold casting and low-pressure casting can be used. The temperature and cooling rate must be strictly controlled during the casting process to ensure the internal quality and surface quality of the casting. It is often used to manufacture complex-shaped structural parts of aerospace vehicles.
Forging: It is suitable for manufacturing high-strength structural parts, such as key components of aircraft engines.
Machining: Due to its high strength and hardness, appropriate tools and cutting parameters should be selected during machining. It is used to process precision parts of aerospace vehicles, engine parts, etc.
Wide range of applications
Aerospace:
Aircraft structural parts: commonly used in aircraft wings, fuselages and other structural parts, with high strength and high temperature resistance, to ensure the structural integrity of the aircraft during flight.
Rocket parts: used to manufacture rocket engine structural parts and fuel tanks, its high temperature resistance and oxidation resistance can ensure the stable operation of rockets in extreme environments.
Spacecraft components: ideal materials for spacecraft structural parts and thermal protection systems, capable of withstanding high temperatures and high loads in space environments.
Military equipment: used in military aircraft fuselages and wing parts to provide reliable performance for aircraft in complex flight environments; also used in armored vehicle structural parts to enhance vehicle protection performance.
Industrial applications: suitable for high-temperature equipment, such as high-temperature furnaces, heat exchangers, etc.; can manufacture high-strength parts of engineering machinery, such as crane structural parts, excavator arms, etc.; in the manufacture of pressure vessels that need to withstand high pressure and high temperature, it can also ensure safety and reliability.
Sports equipment: used to manufacture high-performance racing car frames and other sports equipment, using its excellent strength-to-weight ratio to improve equipment performance.
Original Source:https://www.aircraftaluminium.com/a/7050-and-2219-aluminum-alloy-sheets.html
Tags: 7050 aluminum plate ,
Contact Us
