Colorful anodized aluminum plate pieces of various alloys are used in cars now. With different specifications and properties, they serve as structures or housing of different parts of a car: body, chassis, skeleton, seats, shell and doors.
1. Car body, commonly used aluminum plates are of 2000 series, 5000 series and 6000 series. The 2000 series is a heat-treated and reinforced aluminum alloy with excellent forgeability, high strength and good welding performance, but its corrosion resistance is worse than other series. Currently, 2036 and 2022 alloys have been partially used in automotive body panels. The 5000 series alloy is a kind of aluminum alloy which can not be strengthened by heat treatment. However its delayed yield may be generated during processing deformation, so it is mainly used for shapes such as the inner panel of a vehicle body. The 6000 series of colored anodized aluminum plate sheets are a heat-treated reinforced aluminum alloy with high strength, good plasticity and excellent corrosion resistance. Compared with steel plates, the 6000 series 2T4 plate has similar yield strength and tensile strength, and the hardening coefficient even exceeds the steel plate. At present, the 6009, 6010 and 6016 aluminum alloys are used for the outer and inner panels of automobile bodies due to their good plasticity and the ability to achieve artificial aging during the post-forming paint baking process.
2. The chassis can be made of 5000 series or 6000 series of anodized aluminum plates.
3. The car skeleton is the most stressed part, made of 2000 series or 7000 series materials after heat treatment and strengthening.
4. Car seats are made of 2000 series or 6000 series of colored anodized aluminum plates after heat treatment and strengthening.
5. The shell of a car is the secondary force part of the body, made of 5000 series or 6000 series.
6. Doors can be made of 5000 series or 6000 series of aluminium plates.