According to relevant data, replacing traditional steel structures with aluminum in new energy vehicles can reduce the vehicle weight by 30% to 40%, the production of engines by 30%, and the production of wheels by 30% to 50%. The use of aluminum in new energy vehicles is one of the important ways for automotive lightweighting, environmental protection, energy saving, acceleration, and transportation. In addition, the main advantages of using aluminum in new energy vehicles are its light weight and good heat dissipation. Therefore, it is very necessary to develop aluminum automotive components for new energy vehicles. 

With the advancement of engine technology, the valve structure has become the mainstream design trend for engines. Compared with dual-valve engines, the cylinder head with four valves per cylinder generates more heat than the one with two valves per cylinder. Using aluminum cylinder heads for new energy vehicles is a better solution. Currently, not only the piston, radiator, oil pan and cylinder block of automotive engines are made of aluminum, but also the cylinder head and crankcase are made of this material. In the current situation, using aluminum from new energy vehicles to replace cast iron in engines has become a mainstream trend. The aluminum cylinder liners of French cars have reached the top score, and the aluminum cylinder blocks have reached 45%. 

In the coming years, with the successful development of high-strength and high-quality aluminum materials for new energy vehicles and the continuous improvement of manufacturing processes, aluminum will be increasingly used to manufacture such components for new energy vehicles. Automotive aluminum alloys can be classified into casting aluminum alloys and wrought aluminum alloys. Casting aluminum alloys are the most widely used in automobiles, accounting for more than 80%, and are divided into special casting parts such as gravity casting and low-pressure casting. Wrought aluminum alloys include sheets, foils, profiles, forgings, etc. Although there are certain differences in the types of industrial aluminum alloy materials used by various countries, they are generally similar. Their composition is as follows: castings account for about 80%, forgings account for 1% to 3%, and the rest are processing materials. Wrought aluminum alloys account for a large proportion in the automotive industry of the United States, reaching 36%. 

The inner and outer panels of the car are made of aluminum alloy instead of steel plates, which can reduce the weight of the car by 40% to 50%, thereby reducing the overall net weight by about 10%. Using aluminum bodies. The number of engine hoods and luggage compartment covers made of ABS is even greater. 6016 alloy is widely used in ABS, but the heat treatment process is complex. The pre-aging treatment T4P must be carried out between the solution treatment and the paint treatment to achieve good performance. Because it should have good formability before stamping and can rapidly increase strength during the baking process after stamping, thus having high resistance to denting. After the 6016 aluminum alloy used in new energy vehicles is treated with solution-T4P-painting, it can meet the requirements of both aspects, but the process parameters have a significant impact on the performance. Insufficient solution treatment will reduce the precipitation ability of T4P and the artificial aging during the painting process. It may cause grain coarsening, and low pre-aging humidity will reduce the performance stability of the sheet during the placement process and the hardening effect during the baking process. If the temperature is too high, it will affect the forming performance of the stamping process. Therefore, the parameters of the solution and T4P processes should be optimized to achieve the ideal comprehensive performance. 

At present, one of the main reasons restricting the large-scale application of aluminum for new energy vehicles in automobiles is that its price is higher than that of steel. To promote the large-scale application of aluminum in automobiles, it is necessary to reduce the material cost. 

In addition to developing low-cost aluminum for new energy vehicles and advanced aluminum alloy forming processes, the recycling technology can further reduce the production cost of aluminum alloys. Another research direction for expanding the application of aluminum alloys is to develop new various connection technologies. The future development of multi-material structure vehicles requires two different types of materials. The production and manufacturing of future vehicles will be a completely different scene.