Article
Article
Extrusion
Article By:
Freeman, Ralph L. Formerly, Department of Mechanical Engineering, Iowa State College, Ames, Iowa.
Last reviewed:January 2020
DOI:https://doi.org/10.1036/1097-8542.249400
The forcing of solid metal through a suitably shaped orifice under compressive forces. Extrusion is somewhat analogous to squeezing toothpaste through a tube, although some cold extrusion processes more nearly resemble forging, which also deforms metals by application of compressive forces. Most metals can be extruded, although the process may not be economically feasible for high-strength alloys.
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