Abstract: A die casting machine includes a stationary die half, an ejector holder block, and die core pieces that extend through the ejector holder block, defining a die cavity when closed. An ejector box backstops the closed ejector holder block and die core pieces. Melt is injected into the die cavity. After a first dwell time, the ejector box is retracted away from the ejector holder block while a closing force is simultaneously applied to maintain the ejector holder block closed on the stationary die half, and the die core pieces are retracted out of the die cavity. After a second dwell time, the melt completely freezes and the ejector block is separated from the stationary die half, opening the die cavity from which the resulting die cast block can be retrieved.

Abstract: A die casting machine includes a stationary die half, an ejector holder block, and die core pieces that extend through the ejector holder block, defining a die cavity when closed. An ejector box backstops the closed ejector holder block and die core pieces. Melt is injected into the die cavity. After a first dwell time, the ejector box is retracted away from the ejector holder block while a closing force is simultaneously applied to maintain the ejector holder block closed on the stationary die half, and the die core pieces are retracted out of the die cavity. After a second dwell time, the melt completely freezes and the ejector block is separated from the stationary die half, opening the die cavity from which the resulting die cast block can be retrieved.