Alumínio 7050
Tipo de material
Metal
Nome do material
Alumínio 7050
Nomes alternativos
EN AW-7050 | 3.4144| AlZn6CuMgZr | A97050
Compatibilidade de processos
Fresagem CNC, Torneamento CNC
Machining Aluminum 7050 FAQs sobre a compra
Aluminum alloy 7050, commonly used in aerospace, is suitable for CNC machining but requires careful consideration. A stable CNC machine is important to minimize vibrations, and securing the workpiece prevents unintended movement during machining.
Select appropriate cutting tools, such as carbide or high-speed steel. Tools with a high helix angle help with efficient chip evacuation. Adjusting cutting speeds and feeds prevents overheating, and using coolant aids in heat dissipation and prolongs tool life. Aluminum 7050 produces long chips, requiring effective control to prevent tool damage. Optimizing tool paths, including climb milling, enhances surface finish and minimizes deflection. The alloy's intrinsic surface finish qualities usually result in satisfactory outcomes, but additional treatments like anodizing may be applied for specific needs.
The chemical composition of the material consists of 89% aluminum (Al), 2.3% copper (Cu), 2.3% magnesium (Mg), 6.2% zinc (Zn), and 0.12% zirconium (Zr). In terms of physical properties, the material has a density ranging from 2.6 to 2.8 g/cm³, a melting point of 494°C, tensile strength of 515 MPa, yield strength of 455 MPa, fatigue strength of 240 MPa, elastic modulus ranging from 70 to 80 GPa, Poisson's ratio of 0.33, elongation of 11%, and a thermal conductivity of 180 W/mK. These properties make the material suitable for various applications, particularly in aircraft and other structures. It is commonly used in fuselage frames, bulkheads, and wing skins.
Tabela de propriedades of Aluminum 7050
| PROPRIEDADES MECÂNICAS | |
|---|---|
| Resistência à tração final | 470-530 MPa |
| Resistência ao escoamento | 390-460 MPa |
| Módulo de Young (Elasticidade) | 70-80 GPa |
| Alongamento na rutura | 5-12 % |
| Propriedades físicas | |
| Resistência à corrosão | Bom |
| Magnetismo | Não magnético |
| Soldabilidade | Pobres |
| Propriedades térmicas | |
| Coeficiente de expansão térmica | 23-25.4 x 10^-6/°C |
| Condutividade térmica | 153 W/(m·°C) |
| Propriedades eléctricas | |
| Resistividade eléctrica | 4.4 μΩ*cm |
Conhecimentos básicos of Aluminum 7050
What is Aluminum 7050?
Aluminum 7050 is a widely used alloy in the aerospace industry. It can be heat treated, offering high toughness, strong mechanical strength, and good resistance to stress corrosion cracking. It is part of the 7000 series and is composed mainly of aluminum, zinc, and a small amount of copper.
The alloy can undergo heat treatment processes like solution heat treatment and artificial aging to enhance its mechanical properties further. Though not as easily machinable as some other alloys, it remains suitable for standard machining methods. The ability to tailor its properties through heat treatment adds versatility, allowing it to meet specific requirements in various engineering applications.
Advantages of Aluminum 7050
- Excelente relação resistência/peso.
- Suitable for environments with moisture or corrosive elements.
- Good resistance to fatigue, preventing failure over time.
- Generally weldable for fabricating complex structures.
- Good machinability in the heat-treated condition.
- Exhibits high damage tolerance, suitable for impact and mechanical stress.
- Allows for various heat treatment processes to enhance mechanical properties.
- Widely used in aerospace for structural components.
Applications of Aluminum 7050
- Aircraft structural components (wing spars, fuselage frames, bulkheads)
- Components in high-performance or racing cars (chassis, structural parts)
- Boat construction components
- High-strength structural components
- Precision machining and tooling equipment parts
- High-performance machinery components
Machining Aluminum 7050 FAQs sobre a compra
Outros Materiais
Alumínio 7075
O alumínio 7075 é uma liga forte e leve, frequentemente escolhida devido à sua elevada relação resistência/peso. É amplamente utilizada na maquinagem CNC
Alumínio 6082
O alumínio 6082 é conhecido por ser altamente resistente à corrosão e possuir uma resistência excecional, sendo uma escolha popular para aplicações sob tensão.
Alumínio 6061
O alumínio 6061 (CNC) é a liga de alumínio mais popular. Tem uma boa relação resistência/peso, excelente maquinabilidade e resistência natural à corrosão.
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