Shenzhen Alu Rapid Prototype Precision Co., Ltd.

Die casting is a manufacturing process used to produce precise, high-quality metal parts by forcing molten metal into a mold cavity under high pressure. Here’s a concise breakdown of how it works:

1.Mold Preparation: A steel mold, called a die, is designed with the shape of the desired part. The die consists of two halves: the fixed (cover) die and the movable (ejector) die. The mold is cleaned, lubricated, and preheated to ensure smooth operation and prevent thermal shock.

2.Melting the Metal: A metal alloy (commonly aluminum, zinc, magnesium, or copper) is melted in a furnace to a specific temperature, depending on the material (e.g., aluminum melts at around 660°C or 1220°F).

3.Injection: The molten metal is injected into the die cavity through a high-pressure system, typically using a piston or plunger. Pressures can range from 1,000 to 20,000 psi, ensuring the metal fills every detail of the mold quickly (often in milliseconds).

4.Cooling and Solidification: The molten metal cools and solidifies inside the die, taking the shape of the mold. Cooling time depends on the part’s thickness and material but is usually very fast due to the metal mold’s heat dissipation.

5.Ejection: Once solidified, the die opens, and the part is ejected using pins or a mechanical ejector system. The part may still be hot but is solid enough to retain its shape.

6.Trimming and Finishing: Excess material (flash, sprues, or runners) is trimmed off. The part may undergo additional finishing processes like machining, polishing, or coating for improved appearance or functionality.

Die casting is widely used for automotive parts (e.g., engine blocks, transmission housings), consumer electronics (e.g., phone cases), and household goods (e.g., door handles) due to its ability to produce strong, lightweight, and detailed parts at high volumes.