What Is Cold Forging

What is Cold Forging?
Cold forging, also known as cold working, refers to the deformation or processing of metals below their recrystallization temperature, such as cold drawing or cold stamping of steel. Hot deformation or hot working refers to the deformation or processing of metals above their recrystallization temperature, such as hot rolling and hot forging of steel.
Conceptually, cold forging of steel refers to a process that deforms, straightens, and removes rust from steel through mechanical processing at room temperature. In practice, in contrast to hot working, cold forging refers to processes that plastically deform metals below their recrystallization temperature, such as cold rolling, cold drawing, stamping, and cold extrusion.
Cold forging has high resistance to deformation. While forming the metal, it also increases the hardness and strength of the workpiece through work hardening. Furthermore, cold forging consumes little material during production, resulting in virtually no scrap and significant cost savings.
Cold forging materials are primarily aluminum and some alloys, copper and some alloys, low-carbon steel, medium-carbon steel, and low-alloy structural steel. They exhibit low deformation resistance and excellent plasticity at room temperature. Cold forgings have good surface quality and high dimensional accuracy and can replace some cutting processes.