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Ningbo Yao Yuan Precision Technology Co., Ltd.
Ningbo Yao Yuan Precision Technology Co., Ltd. is China Die Casting Auto Parts Manufacturers and Custom Aluminium Alloy Die Casting Auto Parts Suppliers. Yao Yuan is a ′Step by Step′ for die castings. The factory is in the unique position of being able to provide the customer with design and manufacture of tooling, die casting the component, machine finishing, surface treatment and delivering the product。 Yao Yuan was founded in 1994, for 30 years, it has provided unique solutions to its Tier One and OEM customers. Yao Yuan is located at Yuyao city, Ningbo, Zhejiang, China, which is North to Shanghai (the financial center of China), 180 Kilometers, and East to Ningbo Beilun Port (the biggest port in China), 60 Kilometer. The factory covers an area of 13000 square meters . In addition, there are more than 60 employees, including more than 6 technicians. Through aggressive research and development of new products, Yao Yuan have grown into manufacturer of die casting products fields in Asia with an annual output of over One thousand Tons of Products. Our products have distributed throughout China and exported to more than 20 foreign countries all over the world. Sincerely welcome friends from all over the world to negotiate cooperation with our company. Our service and quality will definitely satisfy you .
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Aluminium Alloy Auto Parts Die Casting Industry knowledge

Key Automotive Components Produced by Aluminium Die Casting

The use of aluminium alloy die casting in the automotive industry has enabled the production of a wide range of critical components that enhance vehicle performance, safety, and efficiency.
a)Engine Blocks and Cylinder Heads: Engine blocks and cylinder heads are among the most critical components in an internal combustion engine. Aluminium die casting allows for the production of these parts with high precision and uniformity. The lightweight nature of aluminium contributes to overall vehicle weight reduction, improving fuel efficiency and handling. Aluminium's excellent thermal conductivity aids in effective heat dissipation, ensuring optimal engine performance and longevity.
b)Transmission Cases: Transmission cases house the gears and components of a vehicle’s transmission system. Aluminium die casting provides the strength and durability required for these components while maintaining a lighter weight compared to traditional materials like cast iron. This reduction in weight contributes to improved vehicle fuel efficiency and reduced emissions. The ability to create complex shapes with tight tolerances also ensures the reliability and performance of the transmission system.
c)Wheels and Suspension Components: Aluminium die-cast wheels and suspension components are popular due to their lightweight and robust characteristics. Die-cast aluminium wheels offer enhanced performance through reduced unsprung weight, leading to better handling and braking. Suspension components such as control arms, brackets, and knuckles benefit from aluminium’s strength and resistance to corrosion, ensuring longevity and consistent performance under various driving conditions.
d)Structural Brackets and Mounts: Structural brackets and mounts are essential for connecting and supporting various parts of a vehicle’s chassis and body. Aluminium die casting allows for the production of these components with high precision and consistency, ensuring a secure fit and robust support. The reduced weight of aluminium brackets and mounts contributes to overall vehicle weight reduction, which in turn enhances fuel efficiency and performance.
e)Heat Sinks and Thermal Management Systems: Effective thermal management is crucial in modern vehicles, especially with the increasing integration of electronic systems. Aluminium die casting is widely used to produce heat sinks and other thermal management components due to aluminium's excellent thermal conductivity. These components help dissipate heat from electronic modules, battery packs in electric vehicles, and other heat-generating systems, ensuring optimal performance and reliability.

Die Casting Process: From Design to Production

The die casting process for aluminium alloy automotive parts is a sophisticated and multi-faceted operation that spans from the initial design concept to the final production of high-quality components.
a)Design and Engineering: The die casting process begins with the design and engineering phase. Engineers and designers collaborate to create detailed CAD models of the desired automotive components. These models are developed with considerations for manufacturability, strength, weight, and thermal properties. Advanced simulation software is often used to predict and optimize the flow of molten aluminium, cooling rates, and potential defects, ensuring the design is robust and production-ready.
b)Tooling and Mold Making: Once the design is finalized, the next step is the creation of the die or mold. This involves precision machining to fabricate the molds from high-grade steel. The mold consists of two halves: the cover half and the ejector half. Each mold is meticulously crafted to match the exact specifications of the component, including complex geometries and intricate details. High-quality tooling ensures that the final parts have excellent dimensional accuracy and surface finish.
c)Melting and Alloying: In the melting stage, aluminium ingots are heated in a furnace to a temperature where they become molten. The alloying process is crucial as it determines the mechanical properties of the final component. Various alloying elements such as silicon, magnesium, and copper are added to the molten aluminium to enhance properties like strength, hardness, and corrosion resistance. The composition of the alloy is carefully controlled to meet specific requirements for different automotive parts.
d)Injection and Casting: The actual die casting process involves injecting the molten aluminium into the pre-prepared mold under high pressure. This step is critical for achieving the desired shape and structural integrity of the component. The high pressure ensures that the molten metal fills even the most intricate cavities of the mold, resulting in parts with excellent detail and minimal porosity. The rapid cooling of the aluminium within the mold also helps in achieving a fine-grained microstructure, enhancing the mechanical properties of the component.
e)Cooling and Ejection: After the molten aluminium is injected into the mold, it is allowed to cool and solidify. The cooling rate is carefully controlled to prevent defects such as shrinkage or warping. Once the component has solidified, the mold is opened, and the part is ejected. Automated ejection mechanisms ensure that the parts are removed from the mold without damage, maintaining the integrity of the intricate details and surfaces.

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