Pressure casting is a casting method in which a liquid or semi-solid metal or alloy, or a liquid metal or alloy containing an enhanced phase, is filled into the cavity of a die casting mould at a high rate under high pressure and the metal or alloy is solidified under pressure to form a casting.

Aluminium is one of the most common alloys used in modern industry. Aluminium alloys are characterised by low density, good mechanical properties, good processing properties, non-toxic, easy recycling, excellent electrical conductivity, heat transfer and corrosion resistance.