The special lost foam castings are some new lost foam casting processes that combined the lost foam casting with other casting process. In this paper

the authors introduce their principle

characteristic and research actuality of some special lost foam casting processes including pressurized lost foam casting

low pressure lost foam casting

vibrating lost foam casting

semi-solid lost foam casting

lost foam-shell casting and lost foam suspend casting. Any special lost foam casting process has its technology advantages

but still possesses their faults. In order to play them into application there would be much work to do. The special lost foam casting processes should have their bright future.