Problem Countermeasure and Technical Innovation of Automobile Aluminum Alloy Wheel Hub

The wheel hub is the key to the car styling. The performance of the wheel hub itself is directly related to the overall performance of the vehicle and is an important guarantee for the personal safety of passengers. In recent years, aluminum alloy wheels have been widely used in the automotive industry, and their good service quality cannot be separated from aluminum alloy wheels. In order to improve the application effect and quality of the wheel hub in the automobile industry, it is necessary to strengthen the effective analysis of the service quality and production conditions of the aluminum alloy wheel hub, which will help to further improve the development effect of the aluminum alloy wheel hub industry and clarify the development direction of the automobile industry.

1. Problems and countermeasures of automobile aluminum alloy wheel hub

The aluminum alloy wheel hub of automobile will inevitably fail in the course of use. When the vehicle is running at a certain speed, the steering wheel will vibrate, but when the speed decreases or increases, the vibration will disappear, mainly due to poor balance. The four tires must be accurately balanced first, and then the nuts and bolts must be checked for correct use. Do not install previously bent bolts and nuts on the base of the shaft. Check the rim between the center hole and the axle. If the agreement is inconsistent, use the center ring, install the center ring on the wheel ring, and then install the wheel ring on the vehicle. These methods can solve the above problems; The steering wheel vibrates violently during braking, mainly because the front brake disc is deformed or rusted, so the brake disc must be replaced. It is particularly important to remind the driver that if the rear rim and brake system are very hot for a long time, do not wash the vehicle with water immediately, otherwise the brake disc will be slightly deformed. In addition, incorrect rim installation may cause the steering wheel to shake when braking. Therefore, check whether the rim is correctly installed.

2. Technical transformation of automobile aluminum alloy wheel hub

2.1 Select reasonable rim

When selecting the aluminum alloy rim to be replaced, in addition to the relationship between aluminum ring heat dissipation and heat dissipation efficiency, the relationship between aluminum ring heat dissipation and heat dissipation efficiency should also be selected. The shape of the rim determines the cooling efficiency of the brake system, so it is particularly important to select a reasonable rim shape. The traditional five claw or six claw design is a durable classic design, which helps to improve the cooling efficiency of the brake system. The shape of multi degree of freedom is even similar to the shape of a tree branch. It has a very flexible feel. Its symmetrical and balanced cutting space is very conducive to heat dissipation.

2.2 Pursue the lightweight of aluminum alloy rims

The extension of lightweight rims and the reduction of vehicle suspension mass can effectively improve the response speed of vehicle steering, suspension and braking, and greatly improve vehicle maneuverability. However, due to the high material stiffness and manufacturing level of lightweight rims, their costs are higher and their prices are higher than those of ordinary rims. The lightweight design reduces redundant rim positions, making the design more monotonous. Generally speaking, competitors will choose to make some minor modifications to the rims. The application of aluminum alloy castings will become the focus of automotive technology. The development of China’s automobile market should be combined with the development of modern aluminum alloy wheel weight reduction technology to create a better market application prospect in continuous reform and innovation.

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