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7075 aluminum coil is a high-strength aluminum alloy commonly used in the manufacturing of aircraft parts. It belongs to the 7xxx series aluminum alloys, which are known for their excellent strength-to-weight ratio and high tensile strength.
The 7075 aluminum alloy contains zinc as the primary alloying element, along with small amounts of magnesium, copper, and chromium. This alloy undergoes a precipitation hardening process, known as heat treatment, to further enhance its mechanical properties.
Key features and characteristics of 7075 aluminum coil for aircraft parts include:
High strength: 7075 aluminum coil offers exceptional strength, making it suitable for structural components and critical aircraft parts that require reliable performance under demanding conditions.
Lightweight: Despite its high strength, 7075 aluminum coil is relatively lightweight. This enables aircraft designers to reduce overall weight while maintaining structural integrity and enhancing fuel efficiency.
Excellent fatigue resistance: The 7075 alloy exhibits excellent fatigue resistance, allowing it to withstand repetitive loading cycles without failure. This is crucial for parts subjected to constant stress during flight operations.
Good corrosion resistance: While not as corrosion-resistant as some other aluminum alloys, such as 2024, 7075 aluminum coil still offers reasonable resistance to corrosion. Proper surface treatments and protective coatings can further enhance its corrosion resistance.
Machinability: Despite its high strength, 7075 aluminum coil can be machined with relative ease. It responds well to various machining processes, including drilling, milling, turning, and shaping.
Due to its exceptional strength and mechanical properties, 7075 aluminum coil is commonly used in the production of aircraft structural components, such as wing spars, fuselage frames, bulkheads, and landing gear components. Its reliability, lightweight nature, and ability to withstand harsh conditions make it a preferred choice for critical aircraft applications.
7075 aluminum coil for aircraft parts:
High tensile strength: 7075 aluminum coil has an impressive tensile strength of around 570 MPa (83,000 psi). This high strength allows it to withstand heavy loads and resist deformation, making it suitable for components that require exceptional strength and structural integrity.
Aerospace-grade material: 7075 aluminum is commonly referred to as an aerospace-grade alloy due to its outstanding performance in aviation applications. It meets stringent industry standards and specifications, making it a reliable choice for critical aircraft parts.
Heat treatable: 7075 aluminum coil can undergo various heat treatment processes to further enhance its mechanical properties. The most common heat treatment method is known as "T6 tempering," which involves solution heat treatment followed by artificial aging. This process increases the alloy's strength and hardness while maintaining good toughness.
Limited formability: Compared to other aluminum alloys, such as 6061, 7075 aluminum has lower formability. It may require specialized forming techniques and equipment to shape it into complex aircraft parts. However, its high strength compensates for this limitation and provides excellent structural performance.
Non-weldable: 7075 aluminum alloy is generally considered non-weldable using conventional methods due to its high susceptibility to cracking during welding. However, certain advanced welding techniques, such as friction stir welding (FSW), can be utilized to join 7075 aluminum parts successfully.
Anodizing capability: 7075 aluminum coil can be easily anodized, which involves creating a protective oxide layer on the surface. Anodizing provides enhanced corrosion resistance and allows for the application of decorative or protective coatings to meet specific design requirements.
Overall, 7075 aluminum coil is a high-strength and lightweight material specifically designed for demanding aerospace applications. Its exceptional combination of strength, durability, and corrosion resistance makes it a preferred choice for critical aircraft parts, contributing to the overall performance, reliability, and safety of aircraft systems.
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