High-performance customized wheel bolts - key accessories in the automotive industry

In the field of automobile manufacturing, wheel hub bolts are important fasteners that connect the wheel hub and the vehicle chassis, and their performance directly affects the safety and stability of the vehicle. With the continuous development of the automobile industry, especially the increasing demand for high-performance and modified models, standard wheel hub bolts are difficult to meet the requirements in some cases. For this reason, customized wheel hub bolts have become the focus of the solution. This article will take a high-performance customized wheel hub bolt as an example to analyze its characteristics, manufacturing process and application scenarios.

Case background

When a high-end automobile manufacturer was developing a new performance car, it found that standard wheel hub bolts could not fully meet the following requirements:

High strength requirements: When high-performance vehicles are driving at high speeds and braking suddenly, the wheel hub bolts need to withstand greater shear and tensile forces.

Corrosion resistance: When vehicles are driven in a humid and salty environment for a long time, standard bolts are prone to rust, affecting performance and appearance.

Weight optimization: While ensuring strength, the weight of the wheel hub bolts needs to be reduced to improve the fuel economy and dynamic performance of the vehicle.

Solution for wheel hub bolts

Material selection

In order to meet the requirements of high strength, corrosion resistance and light weight, **titanium alloy (Ti-6Al-4V)** was selected as the main material for wheel hub bolts.

High strength: The tensile strength of titanium alloy is as high as 900 MPa or more, which is enough to withstand the extreme load during high-speed driving.

Corrosion resistance: Excellent performance in salt spray and humid environments, suitable for various complex road conditions.

Lightweight: Compared with steel, the density of titanium alloy is only 60% of that of steel, which greatly reduces the weight of wheel hub components.

Structural design

According to performance requirements, the structure of the bolts is optimized as follows:

Lengthened screw part: Adapts to the wide wheel hub design of high-performance vehicles, while increasing the thread contact area to improve stability.

Precision thread design: Uses fine pitch thread to enhance locking force and prevent loosening.

Conical head design: Optimizes the contact surface between the wheel hub and the bolt, evenly distributes the load, and reduces stress concentration.

Surface treatment

In order to further improve performance, a special surface treatment process is used:

Anodizing: Form a dense oxide film on the surface of the bolt to improve corrosion resistance and increase surface hardness.

Anti-loosening coating: Add anti-loosening coating to the threaded part to improve shockproof and anti-loosening performance and adapt to complex road conditions.

Production process

Precision forging

The high-precision forging process ensures the uniform distribution of grains inside the material, improving the strength and toughness of the bolt.

CNC machining

The multi-axis CNC machining center is used to perform precision machining of threads, heads and key dimensions to ensure that the size and tolerance of each bolt meet the design requirements.

Heat treatment

After a rigorous heat treatment process, the microstructure of the titanium alloy is optimized to further improve strength and durability.

Surface treatment

Finally, anodizing and anti-loosening coating treatment are performed to ensure the performance stability of the bolt under harsh conditions.

Performance Testing

After manufacturing, this customized wheel hub bolt passed the following rigorous tests:

Tensile strength test: Verify the strength performance of the bolt under extreme load.

Fatigue test: Ensure the service life of the bolt under repeated loading.

Salt spray test: After more than 500 hours of salt spray test, the bolt has no obvious rust, showing excellent corrosion resistance.

Road test simulation: Simulate the test under actual road conditions such as high temperature, high speed, and bumps, and the bolt always maintains a firm connection.

Application Effect

After actual installation and testing, this high-performance customized wheel bolt performs well on performance vehicles:

Improve stability: The connection of the wheel hub is more stable when driving at high speed and braking suddenly.

Extend service life: The corrosion resistance is significantly improved, and it remains as good as new after long-term use.

Optimize vehicle dynamic performance: By reducing weight, the vehicle's handling and fuel economy are further improved.

The value of non-standard wheel hub bolts

This customized wheel hub bolt demonstrates the unique advantages of non-standard fasteners in the field of high-performance automobiles. By optimizing materials, structures and processes, it not only meets demanding use requirements, but also brings a new improvement to the performance of the entire vehicle. In the field of high-end automobiles and modifications, choosing a customized wheel hub bolt is not only a safety guarantee, but also a key step in performance optimization.

If your vehicle or project has special requirements for fasteners, please contact us, we will provide you with professional customized solutions!