Abstract
This paper presents modeling of liquid upward flow and design of pressing velocity considering air entrainment suppression in press casting process. In this study, the problem of air entrainment is focused on an innovative casting method called "Same Mold Press Casting". This method has two molds which are an upper mold and a lower mold, molten metal is directly poured into the lower mold without a runner, and then pressed to fill the cavity by the upper mold being lowered down. Thus, fluid of molten metal which was turbulent by moving upper mold has air entrainment. Then, air entrainment are suppressed by modeling of liquid upward flow has been clarified.
