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Aluminum castings are a common metal component widely used in industries such as automotive, aerospace, and mechanical manufacturing. The production process of aluminum casting manufacturers mainly includes steps such as mold manufacturing, casting, processing, and testing. Below is a detailed introduction.

1. Mold manufacturing

The production of aluminum castings began with mold manufacturing. Engineers will design and manufacture molds based on the component drawings provided by customers. Mold manufacturing materials include cast steel, aluminum, silicates, etc. The cost of steel molds is high, but the manufacturing cycle is short and the service life is long; Silicon salt molds are reusable and high-precision, with a long manufacturing cycle and moderate cost; Aluminum molds have relatively low costs and are easy to process and cut. According to customer component drawings and requirements, aluminum casting manufacturers can choose different materials to manufacture molds.

2. Casting

After the mold manufacturing is completed, the aluminum casting manufacturer begins casting. Firstly, according to customer requirements, add an appropriate amount of aluminum material or its alloy into the furnace for melting. The melted aluminum material flows into the nozzle of the injection machine and is sprayed into the mold cavity. Through cooling, the aluminum liquid solidifies into aluminum castings. The casting process not only depends on the selection of materials, but also on the accuracy of the mold and the flowability of the materials. Aluminum casting manufacturers must ensure the accuracy of molds and the continuous optimization of alloy selection during the casting process.

3. Handling

The surface roughness and internal defects of aluminum castings can be improved through surface treatment techniques such as sandblasting, plastic processing, etc. Sandblasting technology is the process of spraying sand particles onto the outer surface of castings, forming fine grooves on the surface for surface treatment. After sandblasting, the surface of the casting becomes flatter, allowing for control of roughness and glossiness.

Plastic processing can help optimize the shape and size of aluminum castings. At this stage, manufacturers use various machines for shape processing or trimming tools. For example, using CNC machine tools for mechanical processing or rotating and stretching aluminum plates to achieve predetermined shapes and sizes.

4. Testing

Aluminum castings are high-precision components, so quality inspection is an essential step. Aluminum casting manufacturers use high-precision tools to inspect parts, such as measuring instruments, radiographic testing, and so on. The main purpose of inspection is to ensure that the numbered aluminum castings meet the required standards, check the physical and chemical properties as well as surface roughness of the parts, in order to avoid equipment failure or accidental damage caused by defects.

In summary, the production process of aluminum casting manufacturers, from mold manufacturing, casting, processing to testing, must be accurate and continuously optimized and improved. Only after producing components with clear standards can manufacturers meet customer needs and provide high-quality aluminum castings.