Die Cast Foundry: A rapid, water cooled permanent mold casting process, an outgrowth of casting printer’s lead, still quite limited to nonferrous metals. There are three types: the plunger type operated hydraulically, mechanically or by compressed air with or without a gooseneck; the direct-air injection which forces metal from a gooseneck into the die, and the cold-chamber machine. All force the metal into the die with a pressure greater than that of gravity flow.