High-Pressure Die Casting (HPDC) is an extremely efficient manufacturing method for producing various product forms. The process forces molten metal at high speed, and high pressure into a closed steel die cavity. The die has a stationary and moving half, both of which are mounted to the die casting machine’s platens. The die casting machine has an injection end that uses hydraulics and pressurized gas to move a piston forward, injecting the molten metal into the closed steel die. The die casting machine also has a clamping end that utilizes hydraulics and mechanical toggles to absorb the injection pressure and hold the die shut while the part solidifies. The process is capable of turning molten metal into a solid near-net-shape part in seconds.
The three main metal groups used with this die casting process are aluminum, zinc, and magnesium. CWM casts all three metals and employs both cold chamber and hot chamber high-pressure die casting processes.
High-Pressure Die Casting can produce large, light-alloy parts in high volumes at great speed and efficiency. The HPDC process also delivers parts with superior surface finish, excellent uniformity, and optimum mechanical properties.
Another advantage of High-Pressure Die Casting is that it generally doesn’t require much machining thanks to excellent dimensional accuracy and smooth surfaces. Compared to other manufacturing processes, high-pressure die casting is an efficient, economical process that:
