Home
About us
Products
News
Service
Contact us
Corporate news
Trade news
23 Feb,2023
The shape design of wheel hub with different materials
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.
MORE+
Hub modeling design content
First, structural modeling design. In general, the structure design of automobile hub can be divided from the rim and spoke two aspects. At the present stage, the wheel car mainly adopts the inflatable inner tube and the non-inflatable inner tube to install the tire. The wheel car can directly bear the mass of the car and directly determine the strength of the wheel hub. The hub and spoke parts have different types of shapes to support the body strength. At the same time, through scientific design of spoke modeling, the overall beauty of the vehicle and brand recognition can be improved.
Automobile hub surface treatment technology
By applying the surface treatment technology to the production of automobile wheel hub, the corrosion resistance and the appearance of wheel hub can be improved. At this stage, there are mainly these surface treatment technologies:
Automobile wheel hub processing technology
First, forging process. The forging temperature is controlled between 300℃ and 400℃. The metal materials are shaped by the forging press, and the shape of the metal materials is changed according to the relevant scheme. Combined with practice, the forging process has higher processing efficiency, but there are more production procedures and higher costs.
Carbon fiber and other materials wheel hub
Carbon fiber composites are often used in racing wheel hubs because of their high cost. Compared with other materials, carbon fiber composite material has lighter weight and better fatigue resistance, its vibration damping characteristics are special, not only can reduce the driving noise, but also less difficulty to repair the damage. The hub mass can be further reduced by using carbon fiber composite materials in vehicle hubs. In recent years, titanium alloy materials in automotive brake parts, hub modification and other fields have also been applied, titanium alloy has obvious advantages such as high heat resistance, low temperature resistance, but has a more complex processing technology, batch production is difficult to achieve.
Magnesium alloy hub
In recent years, magnesium alloy wheels have been gradually used in passenger cars, which have good mechanical properties and light weight. Compared with the ordinary hub, the heat dissipation performance of the magnesium alloy hub is better. By optimizing the structure of the hub, the heat generated by the braking system can be quickly discharged to the air. At the same time, the magnesium alloy hub has a large space to play in the shape design. By designing the magnesium alloy hub tire wider, the forward grip, braking effort and vehicle control can be enhanced. Due to the lighter weight of the magnesium alloy hub, the overall mass of the vehicle can be reduced, thus reducing the fuel consumption of the vehicle. The magnesium alloy hub can absorb the vibration of the vehicle and improve the ride stability of the vehicle. However, it should be noted that aluminum alloy hub has more complex processing technology and higher cost, and is prone to corrosion problems. In addition, compared with the traditional alloy material, the magnesium alloy has a relatively low elastic modulus, if the hub deformation does not exceed the limit range, it will recover quickly, which reduces the seismic sensation of the vehicle. Compared with carbon steel, magnesium alloy structure has several times more elastic and recoverable deformation. Even if the car road surface is not smooth, aluminum alloy wheels can still reflect its anti-bump advantage.
Aluminium alloy wheel hub
Aluminum alloy wheel is widely used in modern domestic automobile and mainstream German automobile. Because it does not need high cost, it is widely used at present. Aluminum alloy hub has strong thermal conductivity, and compared with traditional carbon steel material, aluminum alloy hub weight is lighter, has better heat dissipation. Aluminum alloy wheel has relatively small inertia resistance, tire resistance is reduced in the process of high-speed driving, which can promote the car fuel consumption to be reduced. Compared with carbon steel material, aluminum alloy has higher thermal conductivity, not only the automobile braking performance is enhanced, the service life of tires, brake disc brake can also be extended.
Carbon steel and nodular cast iron
Early domestic cars, low-end Japanese cars often use carbon steel hub, this hub has a very simple manufacturing process, do not need higher costs, with strong fatigue resistance. Carbon steel and ductile iron material has a larger density, resulting in the wheel hub easy to produce a larger inertia resistance, which increases the vehicle fuel rate. At the same time, carbon steel hub lack of good corrosion resistance, rust problems often appear.
