Common Quality Issues of EN AW-7075 Aluminum Plates
Plate shape quality
The shape of aluminum alloy plates is a key indicator of flatness performance. During the manufacturing process, uneven local stress may cause surface unevenness. For high-requirement products such as ASTM B209 7075 T651 aluminum plates, a stretching process is required to release internal stress and prevent deformation after cutting.
Appearance quality
Due to the characteristics of aluminum plate production, appearance-related defects are relatively common. These may include warping, waviness, dents, scratches, and edge cracking.
Dimensional quality
Dimensional accuracy-covering length, width, and thickness-is subject to increasingly strict tolerance requirements from customers to improve yield rates. If the plate dimensions fail to meet specified tolerances, the product may be considered non-conforming.
Surface quality
Surface defects of aluminum alloy plates may include sticking, roll marks, stripes, oxidation spots, black streaks, and corrosion.
Application Fields of GNEE Hot-Selling 7075 Aluminum Plate Series
Application of 7075 O Aluminum Plate
7075-O aluminum plate refers to EN AW-7075 aluminum in the annealed condition. Compared with other 7075 tempers, it has the lowest strength but the highest ductility, along with good corrosion resistance and acceptable strength.
7075-O temper aluminum plates are commonly used in aerospace, military, and automotive applications.
Application of 7075 T6 Aluminum Plate
7075 T6 aluminum plate is EN AW-7075 aluminum in the T6 temper. This temper is achieved through solution heat treatment followed by artificial aging until standard mechanical properties are met. The hardness of 7075 T6 aluminum alloy reaches approximately 150 HB, classifying it as a high-hardness aluminum alloy. It offers excellent mechanical properties, including good ductility, high strength, strong toughness, and superior fatigue resistance.
Typical applications include:
Aerospace: Manufacturing of aircraft components, gliders, and aerospace vehicles
Transportation: Shipbuilding, bicycle components, and related parts
Industrial use: Tools, instrument gears, fuse components, worm gears, keys, regulating valve parts
Military: Missile components, rifle upper and lower receivers, extension tubes, and precision rifle parts (such as the M16)
Application of EN AW-7075 T651 Aluminum Plate
7075 T651 aluminum plate exhibits one of the highest tensile strengths among aluminum alloys and is the hardest temper within the 7000 series. It features high tensile strength, excellent fatigue performance, good machinability, resistance welding capability, and corrosion resistance.
EN AW-7075 T651 aluminum plate is a lightweight material with a semi-smooth or polished surface. GNEE supplies polished 7075 T651 aluminum plates with a bright surface finish.
This alloy is primarily used for high-quality, high-performance, and high-strength machining materials, making it especially suitable for aerospace applications. It is also widely used for aircraft components, gears, instrument shafts, mold manufacturing, turbines, and other precision parts. Customized processing is available for applications in marine, motorsports, and commercial-grade components.
