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Die casting process (pressure casting) is a special casting process commonly used in the processing industry, by filling the fluid metal or semi-fluid metal at high speed under high pressure into the die casting mold, and the fine aluminum die casting is formed and solidified under the action of pressure, and finally the casting is obtained.

Due to the aluminum die-casting manufacturers aluminum ingot size, surface luster and other advantages. Generally, it is not used directly for mechanical processing, or the processing amount is very small, so it not only raises the metal utilization rate, but also reduces a large number of processing equipment and working hours; Casting price is easy.

The principle of casting method selection of die casting aluminum alloy parts necessitates a systematic evaluation framework that considers production volume, cost structure, and technical requirements within the broader context of modern manufacturing operations. Sand casting is preferred for die casting aluminum parts, primarily because sand casting demonstrates low cost characteristics, employs a simple and straightforward production process, and delivers short production cycle times when compared with alternative casting methods available in the industry. The sand casting approach becomes particularly advantageous when evaluating total cost of ownership across prototype development phases and small to medium batch production runs.