The choice of wheel machining method
According to the different material and performance requirements, different methods can be chosen for wheel machining. The main machining methods are as follows:
Casting
Casting is one of the most common and lowest cost processing technology for steel wheel, which can meet the force requirements of most automobiles. It can be divided into gravity casting, low pressure casting and spin casting according to the manufacturing difficulty and performance from low to high. Gravity casting is to pour the liquid metal into the mold of the wheel and cool it to form. This method is simple and low cost, but the molecular density of the produced wheel is low and the strength is not high enough to bear a large load. The low-pressure casting process will exert a constant pressure on the basis of gravity casting to form the wheel, which has higher molecular density and higher strength, and is an important method for low-cost and high-quality processing of the wheel at present. Rotary die casting is to heat the steel wheel while rotating stamping, so that the metal molecules in the steel wheel closer and higher strength.
Forging
Forging process wheels are generally used on high-performance automobiles. The manufacturing process of forging wheels is to heat the aluminum block first, to a certain temperature and then press it into blanks, and then spin the blanks into shape. Compared with the cast industrial wheel, the processing technology is relatively complex, but the forging process produces the wheel with uniform density, lighter weight, higher strength, smoother surface and easy secondary processing. The performance of the wheel processed by forging process is superior to that processed by casting process, and it is the first choice for high-end vehicle models and special purpose vehicle models.
Surface treatment of wheel
The surface treatment process of the wheel is mainly to strengthen the decorative effect of the wheel on the automobile, the main treatment process includes polishing, spraying, electroplating, finishing, insert, drawing, etc. , after the surface treatment of the wheel is more beautiful and bright, is a lot of high-end models of one of the important elements of decorative appearance.
Processing operation
The processing procedure of automobile wheel is affected by the structure design and material of the wheel, and is basically the same. The common process of wheel machining is as follows: big end each face rough turning → small end each face rough turning → rim mounting stop and plane finish turning → Inner and outer bearing position finish turning → oil seal finish turning → Brake mounting position finish turning → drilling → tapping → reaming → inspection → warehousing. The different design structure steel wheel processing procedure is different, mainly considers the processing accuracy, the processing efficiency, the processing quality consistency and so on factor.
Conclusion
As the key part of automobile running, the steel wheel effectively ensures the safety and maneuverability of automobile running, and it is also one of the important elements of automobile appearance decoration, it is necessary to consider the manufacturing cost, driving performance and special use of the vehicle, but the trend of the wheel manufacturing is to be light, high-strength, energy-saving and environment-friendly.
Post time: Sep-05-2022
