Squeeze casting
called liquid forging, is a hybrid metal forming process that combines also with die forging in a single step where a specific casting permanent mold
amount of molten metal alloy is poured into a preheated and lubricated die
.ied under pressureand subsequently forged and solidif
Squeeze casting
Squeeze casting is a hybrid of low pressure casting and high-pressure
casting, and it has the potential to completely eliminate the gas defects
associated with HPDC and to enable heat treatment of the castings. In
squeeze casting, the die is filled slowly with metal to maintain laminar flow.
Once the cavity is full, the pressure on the melt is increased to over 100 MPa
and maintained to feed the casting to compensate for shrinkage until the
casting has solidified. Die design for squeeze casting is different from that for
die casting, and includes thick gates and a large shot end biscuit to ensure
that the gates do not freeze before the casting in the cavity has solidified and
to ensure feeding the shrink during solidification.
