Shenzhen Alu Rapid Prototype Precision Co., Ltd.

Industry News

  • Home
  • News
  • What is die casting process

Die casting is a metal casting process where molten metal is forced under high pressure into a mold cavity to create precise, complex parts. The process involves:

1.Mold Preparation: A steel mold, called a die, is designed with the desired part shape and prepared for casting.

Melting: Metal (commonly aluminum, zinc, or magnesium) is melted in a furnace.

Injection: The molten metal is injected into the die under high pressure (typically 1,000–30,000 psi) using a hydraulic or mechanical press.

Cooling: The metal cools and solidifies rapidly within the die, taking on the mold’s shape.

Ejection: The solidified part is ejected from the die, often using ejector pins.

Trimming/Finishing: Excess material (flash) is removed, and the part may undergo additional processes like machining or surface treatment.

2.Types:

Hot Chamber Die Casting: Used for metals with low melting points (e.g., zinc). The injection system is submerged in molten metal.

Cold Chamber Die Casting: Used for metals with high melting points (e.g., aluminum). Molten metal is ladled into the injection system.

3.Advantages:

High precision and dimensional accuracy.

Smooth surface finish.

Suitable for high-volume production.

Complex geometries with thin walls.

Applications: Automotive parts (e.g., engine blocks), consumer electronics, and industrial components.

Shenzhen Alu Rapid Prototype Precision Co., Ltd., for example, offers die casting among its services, leveraging advanced equipment for high-quality results.