Die casting

Die casting is a manufacturing process in which molten metal (often aluminium, zinc or magnesium alloys) is forced under high pressure into a mould (casting mould). The metal solidifies rapidly and is then removed.

How it works

In the die casting machine, the metal is liquefied in a heated crucible. A piston then presses it into the casting mould. The high pressure ensures that even complex geometries are precisely formed. After the metal has solidified, the mould opens and the part is ejected.

Typical materials

• Light alloys (e.g. aluminium, magnesium).
• Zinc alloys.
• Less commonly, copper or brass alloys.

Fields of application

Die casting is often used in the production of engine and gearbox housings, vehicle components, electronic housings and other metal parts that require a high degree of dimensional accuracy.

• Advantages and disadvantages
• Advantages: high surface quality, short cycle times, very suitable for large quantities.
• Disadvantages: expensive moulding tools, limited choice of materials and high energy consumption for melting.