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1. Product Overview
We specialize in custom-made precision die-cast automotive magnesium alloy steering wheels, relying on professional technology to ensure high-quality manufacturing, strictly following precise specifications, and meeting the unique needs of the automotive industry. As an ideal material in modern automobile manufacturing, magnesium alloy has brought many innovative advantages to steering wheels.
2. Product Features
Extremely lightweight: The density of magnesium alloy is about 1.74g/cm³, which is about 35% lighter than aluminum alloy (2.7g/cm³) and about 78% lighter than steel (7.8g/cm³). The steering wheel made of magnesium alloy can significantly reduce the weight of the vehicle, helping to improve the vehicle's acceleration performance, handling flexibility and fuel economy. For cars that pursue high performance and high efficiency, lightweight steering wheels are a key link to achieve excellent performance.
High strength and high rigidity: Although magnesium alloy is light, it has excellent strength and rigidity. At a unit weight, its strength is close to that of aluminum alloy, and it can well withstand the various dynamic loads on the steering wheel during vehicle driving, ensuring the precise transmission and stable response of driving operations, and providing drivers with a reliable control experience.
Excellent shock absorption performance: Magnesium alloy has excellent damping and shock absorption capabilities, which can effectively absorb vibrations from the road and collision energy during vehicle driving. In daily driving, it can greatly improve driving comfort and reduce the impact of road bumps on the driver; in the event of an unexpected collision, it can reduce the impact on the driver and add protection for driving safety.
Good airbag compatibility: Our magnesium alloy steering wheel frame adopts an integrated die-casting process. This structural design gives it extremely high strength and can reliably withstand the strong impact generated by the explosion of the airbag. In contrast, traditional iron frames usually adopt a welded structure, which has certain disadvantages in strength. In the context of increasingly stringent modern automobile safety standards, this feature of the magnesium alloy steering wheel plays a vital role in meeting pedestrian protection and occupant safety regulations.
3. Process and Manufacturing
Careful selection of alloy materials: Aluminum is used as the main alloying element, and the toughness and castability of the alloy are comprehensively considered. For safety-critical components such as steering wheels, we use AM60 material from the low-aluminum AM series magnesium alloy. This material has certain casting properties while ensuring high strength (tensile strength σb ≥ 200MPa, yield strength σs ≥ 130MPa) and good toughness (elongation δ ≥ 6%, 50mm gauge length), meeting the molding requirements of complex steering wheel structures.
Advanced die-casting molding technology: The die-casting process uses high pressure and high speed filling, which can accurately produce thin-walled, complex-shaped castings with small holes and threads, and can also realize die-casting of inlays. This process effectively improves the strength and surface hardness of the magnesium alloy steering wheel. During the die-casting process, we strictly control various process parameters, such as keeping the filling temperature at 700℃, setting the die temperature at 220℃, and the punch speed at 2.34m/s, to ensure that the ideal steering wheel skeleton is obtained. The process qualification rate of magnesium alloy steering wheels produced by this process is equivalent to that of aluminum alloy steering wheels, reaching more than 85%.
Perfect follow-up treatment: In order to further improve product performance and quality, we carry out comprehensive follow-up treatment on the steering wheel after die casting, including heat treatment of load-bearing parts to optimize the internal structure of the material and improve its comprehensive mechanical properties; at the same time, fine machining and surface treatment are carried out to ensure that the dimensional accuracy, surface finish and appearance texture of the steering wheel meet high standards.
4. Product specifications and performance testing
Specification parameters: Product size, shape, etc. can be customized according to customer needs. In terms of dimensional accuracy, the tolerance range is strictly controlled to ensure perfect fit with the vehicle.
Performance testing: Every magnesium alloy steering wheel undergoes rigorous performance testing. In the fatigue test, the center of the steering wheel is fixed, and a force of ±250kN is repeatedly applied in the vertical direction at the rim until the steering wheel breaks. The measured number of cycles is the fatigue life of the steering wheel skeleton. After testing, the average fatigue life of the steering wheel skeleton we produced reached 110,000 times, far exceeding the corporate standard of 100,000 times, which fully proves its excellent fatigue performance. In addition, mechanical performance tests were conducted, and the results showed that the tensile strength was 220MPa and the elongation was 5%. All performances fully meet the strict requirements of automobile steering wheels.
5. Application fields
Magnesium alloy steering wheels are widely used in various types of automobiles, including high-performance sports cars, luxury cars, and ordinary passenger cars that focus on lightweight and fuel economy. Its outstanding performance characteristics can bring better and safer driving experience to drivers of different types of vehicles, and it also conforms to the development trend of the automotive industry's continuous pursuit of lightweight, high performance and safety.
6. Customized service
We are well aware that different customers have diverse needs for steering wheels, so we provide a full range of customized services. Customers only need to provide 3D drawings, and we can complete the full process of production services from mold manufacturing, die casting, deburring, polishing to surface treatment, ensuring that every customized magnesium alloy steering wheel can accurately meet the specific requirements of customers, whether in appearance design, functional configuration or material technology, can be personalized.
Choosing our magnesium alloy steering wheel means choosing a lighter, stronger and safer driving experience, giving your car excellent performance and quality.
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