With the development of automotive technology, lightweight has become the mainstream development trend in the world. In the implementation process of automotive lightweight, aluminum alloy materials are mainly used to replace traditional body steel. From the current development perspective, 5 series and 6 series alloys are important products in automotive aluminum sheet materials.
The application of aluminum plates in automobiles is mainly reflected in three aspects:
One is the collision beam or bumper of a car. The aluminum bumper can achieve the goal of lightweight and fully meet the required strength of the bumper, and the advantages of energy absorption and buffering are also obvious;
The second is the aluminum alloy body plate. After solution treatment of 6xxx series aluminum alloy and appropriate pre-treatment, it can have good formability. When painting, it has high baking hardenability, and after subsequent processing, its performance can be further improved, achieving high strength and resistance to dents;
The third is aluminum car wheels. Replacing the original material with aluminum wheels has become the mainstream, and the technology is relatively mature, widely used in numerous vehicle manufacturing.
The latest research indicates that the demand for automotive aluminum panels will grow at an unprecedented rate in the future. The years 2014 and 2015 are considered turning points in the automotive industry's shift from traditional steel to aluminum and other lightweight materials, including the use of aluminum instead of advanced high-strength steel (AHSS).
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