Aluminum plates are available in various grades and specifications that depend on factors such as alloy composition, temper, thickness, width, length, and surface finish. The following are some commonly encountered grades of aluminum plates:
Cracking of aluminum plate during bending or forming can be caused by excessive stress or strain on the material. This can be due to improper design, fabrication, or heat treatment methods. To avoid cracking, you should select a suitable grade of aluminum plate that has enough ductility and strength for your application. You should also avoid sharp corners, control the temperature, and use appropriate tools and techniques for bending or forming.
Distortion of aluminum plate during machining or welding can be minimized by using proper methods and precautions. For machining, you should preheat the aluminum plate to reduce thermal stress and use a low cutting speed and feed rate to avoid overheating. For welding, you should preheat the aluminum plate to reduce thermal expansion and contraction and use a compatible filler metal and welding technique to avoid cracking. You should also clamp the aluminum plate securely to prevent movement and warping.
Oxidation from the surface of aluminum plate can be removed by using proper cleaning and storage methods. You should remove any dirt, grease, water, or other contaminants from the surface of aluminum plate with a mild detergent and a soft cloth. You should also store the aluminum plate in a dry and ventilated place and avoid contact with corrosive substances.
You can prevent corrosion of aluminum plate in a humid environment by applying a suitable surface treatment method, such as anodizing, painting, or electroplating. These methods can form a protective layer on the surface of aluminum plate that can resist moisture and chemical attack.