The application of alloy in automobile not only has obvious effect of reducing weight and saving energy, but also conforms to the development trend of safety and environmental protection and automobile material, and has significant economic and social benefits. As the weight of automobile body plays an important role in the whole vehicle, the development of high-performance and characteristic automobile body plate is an important part in China's automobile lightweight process.
At present, aluminum alloy is not widely used in automobile body plate in China mainly because the price of aluminum alloy is about 2 times higher than that of ordinary steel and the stamping difficulty of aluminum alloy steel sheet is higher than that of ordinary steel sheet. These two problems puzzle the application range of aluminum alloy plate in automobile body. But with the development of science and technology these problems will be well solved.
First of all, the improvement and progress of smelting technology will lead to the continuous improvement of productivity. Therefore, the unit price of aluminum alloy will keep decreasing and the environmental awareness of governments and people in the world will gradually increase. Therefore, automobile manufacturers will be strongly urged to adopt more aluminum alloy through changing technology and cost.
Secondly, aiming at the problem of aluminum alloy sheet stamping performance is not high on the one hand, through the study of material science to reasonable optimizing the mix of alloying elements in each, through the reasonable matching and the interaction between elements to improve the comprehensive performance of alloy, on the one hand, can improve the process such as heat treatment process and rolling technology improve the stamping forming ability of aluminum sheets.