Stronger than casting is cheaper than forging. Do you know the spinning wheel hub that millions of luxury cars have changed?
Release time:
2023-06-19
People rely on clothes, a set of suitable clothes, can make people energetic, and shoes have a "finishing touch" effect. A car is like a person, and the wheel hub also directly affects the external beauty of the car, which is related to the grade of the whole car. Only when the wheels and the vehicle's own temperament are properly matched can they complement each other.
In addition to the good-looking choice of modified wheels, as the main component of carrying the weight of the car, the performance of the wheel also directly affects the safety of the car. Especially during high-speed driving, the wheel hub needs to cope with the strong impact of rugged roads. If the strength and toughness of the wheel hub are insufficient, it will easily lead to high-speed bursting, which will threaten the safety of the occupants. Therefore, it is very important to choose the right wheel hub.
Spin-on hubs are safer than cast hubs. Wheel spinning set forging, extrusion, stretching, bending, ring rolling, cross rolling, rolling extrusion and other process characteristics in one.
The spun-formed hub can maintain the density of the metal and the dynamic balance of the entire hub, so that the hub has sufficient rigidity, while significantly reducing the thickness of the material, making the hub lighter and more durable. Compared with the aluminum alloy wheels produced by ordinary low-pressure casting, the weight of the wheels of the same size can be reduced by 15%. For the vehicle as a whole, each minus a little weight can have a great effect on the improvement of operability. For example, the rotation of the axle is lighter, the acceleration feeling is stronger, the load of the brake system is lighter, and the deceleration feeling is more realistic. For the pursuit of manipulation of modified users, spinning hub is a good choice.
Generally speaking, the hub formed by spinning can be called spinning hub. Spinning forming technology refers to the installation of prefabricated blanks in the shape of plates or forging on the die of the spinning machine, the rotation of the die and the blank through the spindle of the spinning machine, and then the application of pressure to the blank by a single or multiple spinning wheels, so that each point produces continuous plastic deformation until forming. Spinning process is a kind of wheel hub manufacturing process with high technical content. During the processing of the blank hub, the rim part is heated, the rotating tool rotates, and the rim is gradually elongated and thinned. At this time, the metal molecules in the rim are arranged more closely, so the metal strength here is higher.
In addition to spinning processing, the production process of automobile wheels includes forging and casting. Casting generally refers to low pressure casting technology. The metal liquid is injected into the mold through the equipment, and the pressure is kept constant during this process to ensure the density of the metal liquid and the strength of the metal after solidification. The low-pressure casting process is all mechanically completed, and the wheel hub has a high yield, which is very suitable for mass production. Therefore, most of the cast aluminum alloy wheels designated by automobile manufacturers are produced by this process. The forging process is similar to spinning, but the difference is that the spoke parts of the forged hub are also forged, so the die cost of the hub is relatively high, and mass production cannot be completed. At the same time, compared with spinning wheels and casting wheels, the price of forged wheels will be higher.
Compared with casting, spinning wheels have the advantages of higher strength, better toughness and lighter weight. Compared with forging, the price of spinning is more people-friendly, so consumer acceptance is higher.
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