Several Different Classifications Of Aluminum Alloy Wheels

1. Multi-piece alloy wheel hub
The alloy wheel hubs come in two-piece and three-piece versions. Several parts of the hub are manufactured using forging and spinning processes, respectively, and then connected with titanium bolts. These products are lightweight, have high strength, and excellent performance. However, they are expensive and are mainly used in various championship racing cars and high-end luxury vehicles. In various levels of car races worldwide, whether it's cars or motorcycles, under any conditions, vehicles are required to accelerate from zero to 100 km/h within just 3 seconds. Therefore, the hubs need to be able to withstand the overloaded operating conditions caused by extremely high lateral acceleration, extremely high running speed, and harsh conditions on the track, as well as the temperature rise caused by the intense wear of the tires. In such an environment, the multi-piece aluminum hubs have withstood the tests of various harsh environments. Although the product is lightweight, due to the adoption of advanced manufacturing technology, the structural strength is high, and the combined design of the multi-piece type gives a solid and sturdy feeling.

2. Single-piece Racing Alloy Wheel Hub
F1 racing cars require the use of monolithic wheel hubs. To ensure the performance of the wheel hubs and meet the requirements for weight reduction of the vehicle, they are usually produced through a process of forging blanking followed by spinning forming. This ensures the high performance and the lightest weight of the product. Compared with cast alloy wheel hubs of the same specification, their mechanical properties have improved by more than 18%, and the weight can be reduced by approximately 20%. The monolithic alloy wheel hubs specially designed and manufactured for F1 racing cars have withstood various harsh environments. However, passenger car alloy wheel hubs are not as demanding in terms of performance as those in racing cars. Integral low-pressure cast alloy wheel hubs are sufficient to meet their performance requirements. But passenger cars place greater emphasis on the appearance, design, and aesthetic aspects of the alloy wheel hubs. Influenced by racing sports and the requirements for energy conservation and aesthetics, automotive alloy wheel hubs are also changing. Larger-diameter, slender, and flexible spoke alloy wheel hub designs, as well as lightweight alloy wheel hub designs, are the main development trends and pursuits of automotive alloy wheel hubs.

3. Built-in air alloy wheels
To minimize the weight of the hub to the greatest extent, a new concept of a lightweight alloy hub, the integrated air alloy hub, has emerged. This hub further reduces the weight of the hub through cavity technology. This alloy hub is divided into single-piece and two-piece combined types. The single-piece integrated air alloy hub uses cavity technology to make all the spokes and the inner and outer shoulders of the rim of the hub into cavities, significantly reducing the weight of the hub. Compared with alloy hubs of the same structure, it reduces the weight by 20%, while the performance of the product has been greatly improved. The two-piece, integrated air alloy hub makes the inner shoulder of the rim of the hub into a cavity, significantly reducing the weight of the hub, and compared with alloy hubs of the same structure, it reduces the weight by 5%, improving the performance of the product. This type of alloy hub is made from casting blanks, and the cavities are manufactured using the spinning process.