What is high pressure die casting?

High pressure die casting is a manufacturing process designed to create complex, high-performance parts from non-ferrous metals such as aluminum, zinc, and magnesium. It involves forcing molten metal into a die cavity under high pressure and speed, resulting in a highly accurate and consistent production of parts.

The process begins with the melting of the metal in a furnace and then injected into the die cavity with a pressure of up to 200 MPa. The die cavity is usually made of multiple pieces and consists of two halves, a stationary half called the cover die, and a moving half called the ejector die.

Once the die cavity is filled and the molten metal cools, the product is ejected, and the cycle repeats. The high pressure applied during the process results in smaller, closer grains in the final product, which improves strength and durability.

High pressure die casting is used in the automotive, aerospace, and electronics industries, and it is essential in creating lightweight, high-performance parts such as engine parts, wheels, and heat sinks.