2012 Volume 4 Pages 21-28
The purpose of this research is improving in the products by making the desktop die casting machine using a low melting point alloy and observing phenomenon in the transparent mold made of acrylic resin. Desktop die casting machine is minimum structure, which is composed of an injection part, a mold part, an actuator and a chamber for injection molten metal. The molten metal is injected into the mold with the actuator, and its phenomenon in the mold is observed by using a high speed camera. In this study, two causes that decrease the formability are obtained. One is the turbulent flow caused due to high injection speed. The other is the blowout of the metal from the parting and the air ventilation due to excessive injection pressure.