Different Alloys of Aluminum Body Panels

At present, all major automotive manufacturers have some research on the aluminum body panel. The parts are hood, trunk, fender, car door,etc. Some manufacturers have developed a total aluminum body, such as Audi A8, Chrysler ProWler, etc., which has a certain promotion benefit for the light weight of the car.

The aluminum alloy used in the automotive body is mainly Al-Cu-Mg (2000 Series), Al-Mg (5000 Series) and Al-Mg-Si (6000 Series). At present, North American Automobile Enterprises mainly use AA6111 and AA6022. European auto companies mainly use the 6016 aluminum plate. Japanese automotive manufacturers mainly use the AA6016 and AA6022 aluminum alloys, and some use AA6111.

2000 aluminum alloy has the elements such as Cu and Mg, which strengthens the phase CuAl2 or CuMgAl2, which can be strengthened by heat treatment. achieving good forging, high strength and a certain paint hardenability, which can be applied to the car inside and outside, such as floor cover, cab,etc. Since the corrosion resistance of the 2xxx aluminum is relatively poor, the amount of 2000-based alloy in the body cover in recent years is reduced.

5xxx aluminium can form a solid solution reinforcement effect. It has high moldability and corrosion resistance, but the alloy is a non-heat treatment to strengthen alloy, which can only be obtained by processing hardening. It is usually used for the auto inner plate, particularly suitable for components such as a lid,trunk,an air filter, etc.

6000 aluminum alloy is a heat-treated reinforced alloy, having moderate intensity and good formability and corrosion resistance. The alloy can have a lower yield strength after quenching of solid solution treatment, with good stamping forming capability, and can be further strengthened during the final paint treatment, which can be applied to automotive outer panels and inner plate parts. Haomei Aluminum has all the main aluminum automotive sheets such as 6016 t4 aluminium.