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
A wide variety of metals can be forged into
high quality parts through the closed die process. These materials
steel, high alloy steel, low alloy steel, Inconel®,
and much more. For more information on forgings that be created
with closed die, please visit the forging
Benefits of the Closed Die Forging
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.
Philadelphia Forgings »
Forging Capabilities »
Closed Die Forging