
Investment Casting
YICHENG offers high-quality investment casting solutions, producing complex, precise metal parts with excellent dimensional accuracy and surface finish. Utilizing advanced lost wax casting techniques, we serve industries such as automotive, water treatment, and petrochemical, ensuring reliable, cost-effective, and efficient manufacturing for global clients.
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Investment casting is a versatile manufacturing process used to produce high-precision metal parts with complex shapes. At YICHENG, we specialize in crafting intricate components with tight tolerances and excellent surface finishes. This method minimizes material waste and post-processing, making it ideal for industries like aerospace, automotive, and medical devices. Whether you need turbine blades, gears, or specialized machine parts, investment casting offers a reliable, cost-effective solution for producing durable and high-performance components.
What Are the Advantages of Investment Casting Products?
Investment casting offers several key benefits that make it an ideal choice for producing high-precision, complex components across various industries. Here are some of its primary advantages:
High Precision and Complex Designs
Ideal for small-scale operations, our small-volume fillers Investment casting is ideal for creating parts with intricate shapes and tight tolerances. It allows for complex geometries like thin walls and internal passages, which are hard to achieve with other methods. The process reduces the need for post-processing, saving time and costs, and ensuring high precision for critical components.
Material Versatility and Efficiency
This process works with various metals and alloys, including stainless steel and titanium. It offers flexibility to meet specific material requirements for different applications. Investment casting also reduces material waste, making it a more efficient and cost-effective option compared to other casting methods.
Cost-Effective for Medium Volumes
Investment casting is an economical solution for producing medium-volume runs, typically from 100 to 5,000 parts. It reduces tooling costs and assembly time by consolidating multiple parts into a single casting, offering a cost-effective approach for industries needing precision components.

Applications And Use Cases of Investment Casting
Aerospace & Automotive
Medical Devices
Industrial Machinery
Investment Casting Solutions Offered by YICHENG
Turbo Casting
Turbo casting is designed for automotive and heavy-duty industries, focusing on heat-resistant alloys. It produces high-performance components such as turbine housings, center housings, and bearing frames, ensuring tight tolerances, durability, and consistent airflow. Advanced metallurgical testing and CNC machining guarantee long-term reliability for demanding turbo applications.
Equipment Casting
Food equipment casting solutions are engineered for hygiene, corrosion resistance, and precision. Food-grade stainless steel castings are used in mixers, slicers, and pumps, meeting FDA and 3-A standards. Each component undergoes surface treatments, ensuring a clean and bacteria-resistant finish, ideal for food processing environments.
Auto Casting
Auto casting produces high-precision components for modern vehicle systems, including engine blocks, suspension parts, and brake components. Using advanced investment casting techniques, it ensures dimensional accuracy, fatigue strength, and durability, suitable for both high-volume production and small-batch prototyping, meeting automotive standards.
Polishing Casting
Polishing casting provides components with high-quality finishes, including mirror and satin surfaces. The multi-stage mechanical and electro-polishing processes ensure superior surface quality for decorative hardware, sanitary components, and automotive or architectural parts, meeting both aesthetic and functional requirements for high-end markets.
The Investment Casting Process
The investment casting process is a highly precise method used to produce complex metal components. Below are the key steps involved in creating high-quality cast parts:
Pattern Creation
The investment casting process begins with creating a wax pattern that mirrors the final part’s details, with allowances for thermal contraction. The wax patterns are produced using precision injection molding to ensure dimensional accuracy, capturing intricate geometries and sharp features needed for complex components.
Assembly and Shell Formation
Wax patterns are assembled into a tree-like structure with a central sprue, allowing for simultaneous casting of multiple components. The entire structure is dipped in a ceramic slurry, followed by repeated cycles of sand application and drying, forming a sturdy shell capable of withstanding molten metal during pouring.
Wax Removal and Preheating
Once the ceramic shell is solidified, the wax is removed through a high-temperature process in an autoclave. The shell is then preheated to ensure uniform temperature distribution and to prevent thermal shock during metal pouring, preparing the mold to withstand the extreme heat of molten metal.
Metal Pouring and Final Finishing
Molten metal is poured into the mold, filling the cavity left by the wax. After cooling, the ceramic shell is removed, and the casting is cleaned and refined. Post-processing may include grinding, polishing, or machining to achieve the final desired dimensions, surface finishes, and mechanical properties.

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