Zinc Dies, or zinc die casting tooling, are made of alloy tool steels in at least two sections, the fixed die half, or cover half, and the ejector
die half, to permit removal of die castings. Modern dies also may have moveable slides, cores or other sections to produce holes, threads and other
desired shapes in the casting. Sprue holes in the fixed die half allow molten metal to enter the die and fill the cavity. The ejector half usually
contains the runners (passageways) and gates (inlets) that route molten metal to the cavity. Dies also include locking pins to secure the two halves,
ejector pins to help remove the cast part, and openings for coolant and lubricant.
When the zinc die casting machine closes, the two die halves are locked and held together by the zinc machine’s hydraulic pressure. The surface where
the ejector and fixed halves of the die meet and lock is referred to as the "die parting line." The total projected surface area of the part being cast,
measured at the die parting line, and the pressure required of the machine to inject metal into the die cavity governs the clamping force of the machine.
Zinc Die Casting Tooling is also known as zinc die casting dies, zinc die casting molds or insert dies. Zinc die casting tooling also comes in different
sizes, shapes, and styles. Zinc diecasting tooling comes either with a single cavity or multiple cavities. The cost for zinc die cast tooling varies
for trim dies and cavity inserts.
Zinc Die Casting Tooling - Trim Die
ZINC DIE CASTING TRIM TOOLING. Zinc Parts sometimes need die cast trim tooling. After a part is produced with the zinc diecasting tooling in
the zinc diecasting machine, a die casting trim tool called a "trim die" is used to sheer the excess zinc from around the zinc parts.
Die casting trim dies can save as much as 15% in the zinc part price by speeding up the zinc part production process. Die casting trim dies cut or
shear excess zinc from die cast parts. The trim die sits or is mounted into a trim press that hydraulically forces the two halves of the trim die
together to sheer material with several tons of pressure.