Overflows: a small pocket for the first metal to flow through the cavity located around the edge of the casting. Vents (paths from the die cavity to its outer side) from overflows provide a path for the air to escape from the die.
Overflows: a small pocket for the first metal to flowthrough the cavity located around the edge of thecasting. Vents (paths from the die cavity to its outerside) from overflows provide a path for the air toescape from the die.