First, carbon steel wheels. Compared with other materials, carbon steel hub has the advantages of higher density, simple modeling, good strength and lower price and cost, but the lack of enough rigidity, can not easily change the hub modeling, affecting the hub beauty. In the production and manufacturing of automobile hub, the thickness of the wheel car is often increased, so that although it can improve the supporting force of the automobile, it will increase the quality of the carbon steel hub and reduce the heat dissipation of the hub. In the face of this situation, domestic researchers will design dissimilar steel assembly wheel. The inner wheel of such wheel is made of hot pressed high strength steel and low carbon steel, which can not only meet the design life requirements, but also effectively reduce the quality of wheel hub. But compared with the aluminum alloy hub widely used at present, this hub still has many shortcomings. In order to improve the appearance of steel hub designers often use plastic decorative covers to shield carbon steel hub.

Second, aluminum alloy wheels. The wheel hub of this material has a flexible production and processing technology, thin mesh modeling and three-dimensional modeling can be easily realized. In the forging of aluminum alloy hub, not only can ensure the hollowing degree, but also will not affect the rigidity of the hub. Compared with steel hub, aluminum alloy hub is lighter and widely used in automobile production. Aluminum alloy wheel has a large forming force. Domestic researchers have developed hollow billet reverse extrusion forming technology, which can not only effectively solve this problem, but also greatly reduce the rim quality. At the same time, in view of the complex structure of the aluminum alloy hub and other problems, the wheel and spoke can be designed separately, and then assembled together, which can reduce the gradient change of the hub section, and promote the aluminum alloy hub manufacturing process difficulty, cost and so on. Aluminum alloy hub material quality, processing technology and so on are the main factors affecting the hub price. At the present stage, consumers' requirements for cars are increasing. On the basis of paying attention to the safety performance of cars, they also attach great importance to the aesthetic appearance of cars, and the hub modeling will have a direct impact on the vehicle modeling. At present, aluminum alloy hub mainly adopts single and double - amplitude structure. Single wheel hub has relatively wide spokes and fewer spokes, and there is a larger skeleton. Three - and four-wheel hubs are usually densely arranged spokes, similar to animal claws.

Third, magnesium alloy hub. Magnesium alloy material has a relatively light quality. The use of magnesium alloy material to make wheel hubs can improve the strength, heat dissipation and damping performance of wheel hubs, and can recycle old and used wheel hubs, which is conducive to realizing the lightweight goal of automobile wheel hubs. The domestic team used lightweight magnesium alloy wheels to replace the original products of electric vehicles, and found that the energy consumption of vehicles can be reduced by about 20%, which has very significant economic benefits. At the same time, the magnesium alloy keel has a more changeable and delicate appearance, which can promote the automobile grade to be improved. However, magnesium alloy wheel has many disadvantages, such as higher cost and higher corrosion probability. In recent years, with the rapid development of magnesium alloy processing technology, the defects of magnesium alloy hub, such as lack of good corrosion resistance, will be overcome one by one.

Fourth, carbon fiber wheels. This kind of hub modeling flexible, visual effect is very cool. At the same time, the radial inertia force of automobile wheels can be significantly reduced by using carbon fiber materials to make automobile wheel hubs. Compared with other materials, carbon fiber hub has advantages of good stability and strong design, so it has become an important direction of automotive lightweight research. But carbon fiber hub has complex processing technology and high cost, and lack of ideal heat dissipation performance, at the present stage is mainly used in expensive racing cars, in the Volkswagen brand application.