Squeeze casting, also known as liquid die forging, is a process in which molten metal solidifies under pressure within closed dies positioned between the plates of a hydraulic press.

The pressure applied and the instant contact of the molten metal with the die surfaces produces a rapid heat transfer, which yields a pore-free, fine-grained casting with mechanical properties similar to those of a wrought product.

The squeeze casting process is easily automated to produce near-net to net-shaped, high-quality components.

Process Characteristics

The squeeze casting process combines the advantages of casting and forging processes and has been widely used to produce quality castings.

Because of the high pressure applied during the solidification, porosities caused by both gas and shrinkage can be prevented or eliminated.

The cooling rate of the casting can be increased by applying high pressure during solidification since contact between the casting and the die is improved by pressurization, which results in fine-grained structures.