In the Semi Centrifugal Casting process the mold is rotated around its symmetry axis. The molds are either permanent or expandable. It may have cores also. The shape of the rotating mold gives the shape of the casting. The centrifugal force is put to good use for the processes of slag separation, melt refilling and increasing the filling power to cast components with thin sections. However this process can suffer from inclusion defects as well as porosity. Thus, suitable only for parts where this can be machined away.
This process is used for making wheels, nozzles and similar parts..