Casting is a metal hot-working process mastered relatively early by humans, with a history of approximately 6,000 years. Today, it serves as a primary method for forming blanks and components in the machinery manufacturing industry. Castings account for a significant proportion in machinery manufacturing-for example, they make up 60%–80% in machine tools, around 25% in automobiles, and 50%–60% in tractors. The quality of castings directly affects the overall quality of mechanical products. However, casting is an extremely complex process involving numerous steps, where the quality of castings is influenced by many factors such as mold design, alloy melting, filling, and solidification. Advanced technology and scientific management are two essential conditions for casting enterprises to produce high-quality, low-cost castings. Simons Technology conducts scientific and rational casting process design before production, enhancing the level of technological expertise, ensuring casting quality, and achieving the goals of superior output, high productivity, and cost efficiency.
Overview of Casting Process Design
Casting is a forming method that involves melting metal, creating a mold, and pouring the molten metal into the mold. After solidification, a metal part blank with a specific shape, size, and performance is obtained. The product resulting from this process is called a casting. Casting production encompasses multiple steps, including pattern and core making, alloy melting, pouring and mold filling, cooling and solidification, cleaning and finishing, and quality inspection. It involves quality control of the casting regarding its composition, microstructure, properties, shape, and dimensions.
Casting process design, also known as casting process planning, is the process of determining the casting process plan and parameters, drawing casting process diagrams, and preparing technical documents such as production procedures based on the structural characteristics of the part, technical requirements, production batch, and production conditions. The design should aim to ensure the reliability and stability of casting quality while striving to achieve the goals of high quality, high efficiency, low cost, and minimal environmental impact. This is primarily reflected in the following aspects:
1) Employing advanced process technology to obtain high-quality, low-cost castings.
2) Facilitating production process management. Process inspection can be conducted according to the requirements of the process documents, making it easier to identify the causes of casting defects and implement preventive measures.
3) Benefiting production preparation. Preparations before production, such as preparing flasks, core reinforcements, and raw materials, can be made based on the process design. This helps ensure normal production order and facilitates production planning and scheduling.
4) Enhancing production organization and management. It allows for the continuous accumulation and summarization of production experience, thereby improving the level of casting process technology and management.
