The squeeze die casting, also called extrusion casting or liquid die forging, is a kind of newly developed metal forming technic that combines the casting process and dies forging method.

The basic principle of squeezing die casting is to fill the liquid metal into the pre-lubricated mold cavity, then give sustained pressure to the metal, thus forming the solidifying hard shell. The metal crystallization and solidification process are conducted under the pressure, so the defects such as shrinkage and porosity are greatly diminished. An almost defects-all-free product could be achieved by this technic.

Squeeze Die Casting Types

There are 2 subdivisions of indirect squeeze casting: direct squeeze die casting and indirect squeeze die casting. The formal technic is to give the pressure directly on the surface of liquid metal, while the last technic is to pressure the liquid maintaining in the gating part of the casting mold. Usually, the direct squeeze casting has a better-resulted product than the indirect squeeze die casting.