Impact casting methods and devices
View Patent ↗A method of removing voids from a casting is disclosed including the steps of introducing molten metal into a die, providing an impact surface and dropping the die containing the molten metal at least once from a predetermined height to strike the impact surface. A device for removing voids from a casting includes a base, a drive means operably coupled to at least one cam, and a guide configured to receive a die, wherein the at least one cam is positioned on the base to contact a die placed on the guide, and wherein rotation of the at least one cam is operable to raise and subsequently release the die to strike a surface of the base, and wherein the guide maintains the die in a stable orientation relative to a horizontal axis of the base.
1. A method of removing voids from a casting comprising introducing molten metal into a die, providing an impact surface and dropping the die containing the molten metal at least once from a predetermined height to strike the impact surface.
2. The method according to claim 1 comprising dropping the die repeatedly from the predetermined height to strike the impact surface.
3. The method according to claim 2 wherein the step of dropping the die repeatedly comprises dropping the die at a predetermined frequency.
4. The method according to claim 1 further comprising raising the die containing the molten metal to the predetermined height prior to dropping the die.