You are here:Home > News >

Application of Mingtai Aluminum 5052 Aluminum Sheet in Bus Skin

News Details
    Automobile lightweighting is a hot topic in the automotive industry in recent years. The majority of car companies have also made useful explorations in the field of automotive lightweighting. Not only do small households need to be lightweight, but also large passenger cars need to be lightweight. As a substitute for steel, aluminum is widely used in automobile lightweighting. Taking the bus skin as an example, the 5 series aluminum alloy 5052 aluminum sheet has been applied in some large passenger cars.
    The skin is the main part of the square and the large body of the car. It has three rectangular square holes for installing safety windows, side doors and oil machine doors. The four corners cut out the gaps of the wrapping corner parts. The skins at different positions of different large sheets on the cabin have different structures, but generally rectangular thin aluminum sheets with a thickness of 1.5 to 2.0 mm are used. The processing precision and manufacturing quality of the skinned aluminum sheet directly affect the overall performance and service life of this cabin. Taking the 5052 aluminum sheet for automobile skin as an example, it is required that the surface of the aluminum sheet is flat, free from warpage, scratches, bumps, etc., and the warpage is more than 30 mm in the range of 1000 mm, and it is prohibited to be used as a large sheet skin. Because of the large sheet of the warping title, although the tooling can forcibly flatten it in the bonding foaming process, the internal stress is not eliminated, which may be a hidden danger of the skin being debonded and bulging.
    Mingtai Aluminum's 5052 aluminum sheet is used in the body skin of a large-scale new energy bus. The bus is made of Mingtai 5052-H32 aluminum sheet with a thickness of 1.5mm. The 5052 aluminum sheet is an aluminum-magnesium alloy. Aluminum sheet, this alloy has high strength, especially fatigue strength, and high plasticity and corrosion resistance. The 5052 aluminum sheet also contains a small amount of chromium. The effect of chromium is similar to that of manganese, which improves the resistance to stress corrosion cracking, improves the strength of the base metal and weld, and reduces the tendency of weld cracking. These properties are in line with the performance requirements of corrosion resistance and fatigue strength of aluminum sheets for skins.
    In addition to the 5052 aluminum sheet, the aluminum sheet produced by Mingtai Aluminum has been widely used in other parts of the car: for example, the application of 6061 aluminum sheet in automobile/card wheel hub, the application of 5182 aluminum sheet in automobile door and fender, etc., 5083 aluminum sheet Application in air reservoirs, etc.