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| Forging the
Basic Principles |
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At its most basic level, forging is the process of forming and
shaping metals through the use of hammering, pressing or rolling.
The process begins with a cast ingot, which is heated to its plastic
deformation temperature, then forged between dies to the desired
shape and size.
During this hot forging process, the cast, coarse grain structure
is broken up and replaced by finer grains, achieved through the
size reduction of the ingot.
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This produces a sound central region to the forged
product and gives excellent overall structural integrity. |
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Mechanical properties are therefore improved through the
elimination of the cast structure, resulting in enhanced density
and improved homogeneity. |
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Forging also provides a means for aligning the grain flow
to obtain the best desired directional strengths. |
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