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Learn more about CWM's capabilities including Aluminum, Magnesium and Zinc Die Casting.
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What is High Pressure Die Casting?

High-Pressure Die Casting (HPDC) is a versatile 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, with its stationary and moving halves, is both mounted to the die casting machine’s platens. The die casting machine, with its injection end using hydraulics and pressurized gas to move a piston forward, injects the molten metal into the closed steel die. The clamping end, utilizing hydraulics and mechanical toggles, absorbs the injection pressure and holds the die shut while the part solidifies. The process can turn molten metal into a solid near-net-shape part in seconds, showcasing its versatility in various applications.

The three main metal groups used in this die casting process are aluminumzinc, and magnesium. CWM casts all three metals and employs cold 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 than other metal manufacturing techniques
  • Achieves close tolerances

Value-Added Operations

Not only does Chicago White Metal produce strong die castings with smooth surfaces, but we also offer value-added operations such as finishing 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 in determining your best casting surface finish options; contact us today to learn more. Call +1 630-595-4424, fill out the form on this page, or request a quote here.