High-pressure die casting is a process wherein molten metal is forced, under pressure, into a sealed mould cavity. It is held in place by a powerful compressive power (true die installed in hydraulics machine) until the metal solidifies. Following solidification, the die is released, opened and the metal is released.

What is the minimum pressure for die casting?

In low pressure die casting, the die is filled with metal from a pressurised furnace, with pressures typically around 0.7 bar. The holding furnace is positioned in the lower part of the vertical die casting machine, with the molten metal injected upwards directly into the bottom of the mould.

What is the difference between high pressure die casting and low pressure die casting?

Low pressure die-casting is also relatively slower than those components produced in high-pressure processes. Machine size will also limit the size of castings. On the other hand, high pressure die-casting, which is most commonly carried out in soft alloys such as zinc and aluminium.