Die Casting

Tue, 10 Jun 2008

Die-casting is a process that involves melting of metal, injecting into a mold, solidification and finally ejection. Die casting injects molten metal under pressure into a preformed steel die. After injection, it cools and solidifies. The newly cast part is then ejected and the machine is again ready for another injection cycle. Die casting sounds simple, but involves intricate machinery and techniques to properly control the process. The die casting process is most often used for metals having low melting points, such as zinc, copper, and aluminum.

Die casting includes:

HOT CHAMBER: This process employs a plunger. The plunger collects a fixed amount of the molten metal. Then it automatically injects it through a tube into a die. In this type of die casting the temperature of the casting die is low. A standardized solidification (cooling) time is allowed before ejecting the work piece.

COLD CHAMBER: In this process, the molten metal is poured into a die mechanically either with the help of a machine or manually. The rest of this process involves the solidification of the metal and ejection of the work piece.

Die casting has important advantages over competing processes. It is economical and produces minimal waste material.

To learn more about the die casting, visit to the world’s first online machine shop, emachineshop.com, a website that provides free, simple -to-use CAD software, automatic manufacturing feedback, instant pricing and online ordering.