Nowadays, the automobile industry is booming. With the increasing difficulty of engine technology and the unsatisfactory power battery efficiency, coupled with the need of environmental protection and energy conservation, automobile lightweight has become the trend of world automobile development. As a lightweight material with a variety of excellent properties, aluminum alloy has become a material in the development of automotive lightweight technology.

Aluminum alloy materials will exert their natural advantages in the implementation of automotive lightweighting, mainly used to transform and replace body materials. Automobile lightweight can be roughly divided into three categories: body weight reduction, engine weight reduction, and chassis weight reduction.

The purpose is to reduce the weight of the vehicle by using lighter materials under the premise of ensuring performance, thereby achieving energy saving and environmental protection functions.

The natural advantages of aluminum alloy in automotive lightweight:
1. the weight loss and energy saving effects are obvious. Aluminum has good mechanical properties, its density is only 1/3 of that of steel, and it has good thermal conductivity. It is second only to copper. Its mechanical processing performance is 4.5 times higher than that of iron, and its oxide film formed on the surface has good corrosion resistance. Therefore, aluminum is an ideal material for achieving lightweight automobiles.

2.the passenger's comfort and safety have been improved. Aluminum alloy cars reduce the weight of the car without reducing the car's capacity, the center of gravity of the car is reduced, and the car is more stable and comfortable. Due to the good energy absorption of the aluminum material, there is a clear advantage in the safety of the collision. The deformation zone at the front of the car will wrinkle during the collision, and can absorb a large amount of impact force, thereby protecting the driver and the passenger behind.

3.Aluminum is easy to recycle. Aluminum products hardly corrode or only slightly corrode during use. Among the conventional materials used in industry, the recovery rate of aluminum is high. In the cycle of aluminum-aluminum products-use-recycling recycled aluminum ingots-reprocessed into aluminum, the loss of aluminum is only about 5%, and its regeneration performance is higher than that of any common metal.

We can intuitively understand the typical application of aluminum alloy materials in automotive lightweighting by means of charts:
At present, the 5754 aluminum plate for car door produced by Mingtai Aluminum Co., Ltd. has reached the quality level and standard requirements of similar foreign products, completely replaced the import, and achieved the goal of product stereotype and mass production.

Production process procedures and quality assurance systems. It has contributed to the lightweighting of automobile bodies and the localization of materials.