1, Processing Technology of Automotive Aluminum Alloy Materials
The processing of aluminum alloy automotive parts mainly includes various processes such as casting, extrusion, forging, and rolling. Among them, the casting process uses pressure to rapidly press aluminum alloy liquid into the precision metal mold cavity, and the liquid cools and solidifies under pressure to form castings. This process is mainly used for producing complex shaped components such as engine cylinder blocks and cylinder heads. The extrusion process applies strong pressure to the metal billet placed in the mold cavity, forcing it to undergo directional plastic deformation and extrude from the die hole of the extrusion die, thereby obtaining the required cross-sectional shape, size, and mechanical properties of the component. The extrusion process is mainly used for producing profiles, pipes, and bars. In addition, forging and rolling processes also play an important role in the production of aluminum alloy automotive parts.
In recent years, with the increasingly urgent demand for automotive lightweighting, significant progress has been made in the processing technology of aluminum alloy automotive panels. 6xxx series aluminum alloy automotive panels are currently the main choice for exterior body coverings, and their production process is complicated, covering multiple stages such as melting and casting, homogenization, machining, hot rolling, cold rolling, and continuous heat treatment. To ensure that aluminum alloy automotive panels have good stamping and flanging performance, as well as resistance to natural aging stability and good paint strength increment, the requirements for heat treatment equipment are extremely strict. The air cushion continuous heat treatment furnace has become the preferred equipment for the heat treatment production process of automotive panels, but its core equipment is still monopolized by foreign companies. To break this situation, domestic research institutions and enterprises are actively developing domestically produced air cushion continuous heat treatment equipment and have made certain progress.
The cutting performance of aluminum alloy materials is also one of the key factors in the processing. The cutting performance of aluminum alloy is influenced by various factors such as material composition, microstructure, cutting parameters, and cutting fluid. By optimizing cutting parameters and selecting appropriate cutting fluids, the cutting efficiency and quality of aluminum alloy materials can be significantly improved.
2, Market Status of Automotive Aluminum Alloy Materials
With the continuous expansion of the global automotive market and the rapid growth of the new energy vehicle market, the market demand for automotive aluminum alloy materials is also constantly increasing. Aluminum alloy materials have been widely used in automobile manufacturing due to their excellent properties such as lightweight, high strength, and corrosion resistance. Especially in the field of new energy vehicles, aluminum alloy materials, as an important representative of lightweight materials, have become one of the key factors in improving vehicle power performance and reducing fuel consumption.
In the Chinese market, the demand for aluminum alloy automotive parts continues to grow. According to relevant data, the size of China's automotive aluminum alloy parts market has shown strong growth momentum in recent years. It is expected that by 2025, the global market size of aluminum plates for automobiles will exceed 10 million tons, with the Chinese market continuing to expand. The rapid development of the new energy vehicle market is one of the main factors driving the growth in demand for aluminum alloy automotive parts market. According to the "Development Plan for New Energy Vehicle Industry (2021-2035)" issued by the General Office of the State Council, by 2025, the sales volume of new energy vehicles in China will reach about 20% of the total sales volume of new vehicles. The achievement of this goal will drive the rapid development of the aluminum alloy automotive parts market.
In the global market, European and American manufacturers dominate the field of automotive aluminum alloy materials. The main production enterprises are distributed in North America and Europe, with a relatively high proportion of global production capacity in the United States. These enterprises continuously consolidate their market position through technological innovation and capacity expansion. However, with the rapid development of the Chinese automotive market and the rise of the new energy vehicle market, domestic aluminum alloy automotive parts companies have also begun to actively layout and have certain competitiveness. Some companies use capital market financing to expand production capacity and improve technological capabilities in response to the growing market demand.
