Gravity Die Casting

A permanent mould casting process, where the molten metal is poured from a vessle of ladle into the mould, and the cavity fills with no force other than gravity, in a similar manner to the production of sand castings, although filling can be controlled by tilting the die. 

The advantages over sand castings include better surface finish, and better mechanical properties, which occur due to relatively fasted cooling rates that occur in die casting.