Closed Die Forgings

Philadelphia Forgings is a preferred supplier of exceptional forgings created through the closed die forging process. Closed die forging is known as impression die forging because it offers three dimensional control. Closed die forging also offers the same benefits procured by the open die forging process. Philadelphia Forgings offers closed die forgings that range from a few ounces to over 1,100 pounds each.

What is Closed Die Forging?

Also called impression die forging, closed die forging uses two or more dies. Each die contains an impression of the desired shape. The metal is heated until it reaches a plastic state and is then compressed by the dies. The plastic metal fills the impressions and produces a part that cannot be obtained using flat or open dies. Excess metal that escapes during the process is called flash and is trimmed off by a machine.

Materials Used for Closed Die Forging

A wide variety of metals can be forged into high quality parts through the closed die process. These materials include carbon steel, alloy steel, stainless steel, high alloy steel, low alloy steel, Inconel®, tool steel, aluminum alloy, copper alloy, titanium, and much more. For more information on forgings that be created with closed die, please visit the forging materials section.

Benefits of the Closed Die Forging Process
  • Three-dimensional shapes
  • High strength
  • Soundness
  • Homogeneity
  • Enhanced density
  • Production of intricate and difficult geometries

In addition to three dimensional control, closed die forgings offer other desirable characteristics such as improved mechanical properties, enhanced density, and aligned grain flow. These three characteristics all contribute to soundness, homogeneity, flow-line characteristics, and high strength. Closed die forging can also produce either symmetrical or non symmetrical parts as well as simple or complicated dimensional shapes. Intricate parts are also commonly produced during the closed die process including those that are long and thin or that involve vertical projections or other designs.

Philadelphia Forgings is one of the most reliable suppliers of forgings in the northeast: we serve customers in the Philadelphia area as well as those in eastern Pennsylvania, New Jersey, Delaware, and other national locations. When you need three dimensional forgings that meet the exact specifications and geometries for your product or subsystem, rely on Philadelphia Forgings.