What is High Pressure Die Casting?

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 aluminumzinc, and magnesium. CWM casts all three metals and employs both cold chamber and hot chamber high-pressure die casting processes.

Advantages of High-Pressure Die Casting

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:

  • Produce strong, lightweight parts that require less machining than fabricated parts
  • Create complex and intricate shapes in a single piece, eliminating the need for assembly or welding
  • Offer a more broad range of shapes that other metal manufacturing techniques
  • Achieves close tolerances

Value-Added Operations

Not only does Chicago White Metal produce strong die castings with smooth surfaces, we offer value-added operations such as finishing options and coating options. Depending on your casting’s surface finish requirements, CWM can provide all standard finishing options, such as:

  • Mechanical Finishing
  • Functional Finishing
  • Decorative Finishing

CWM offers excellent resources to assist you determine your best casting surface finish options; contact us today to learn more. Call +1 , fill out the form on this page, or request a quote here.