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Hot Die Vs. Cold Die Forging
2020-04-22 16:05:39

Hot Die Vs. Cold Die Forging

Most metal forging operations are carried out hot, due to the need to produce large amounts of plastic deformation in the part, and the advantage of an increased ductility and reduced strength of the work material. Hot die forging also eliminates the problem of strain hardening the metal. In cases where it is desirable to create a favorable strain hardening of the part, cold die forging may be employed. Cold die forging manufacture, while requiring higher forces, will also produce greater surface finish and dimensional accuracy than hot die forging. Some specific metal forging processes are always performed cold, such as coining.

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