Cold rolling is a process by which metal is passed through rollers at temperatures below its recrystallization temperatures. The metal is compressed and squeezed, increasing the yield strength and hardness of the metal.
Cold rolling of metal strip is a special segment within the metalworking industry. The purpose of this process is to create thinner metal strips with a good dimensional accuracy and a dedicated surface quality for a variety of applications.
How does cold rolling work?
Strip sizes up to almost 2 meter wide and several millimeters thick can be the starting material. While on the other hand cold rolling mills can process and produce very small, few centimeters wide strip and approaching a 10 micron thick strip.
Cold Rolled Stainless Steel Sheet
In contrast to hot rolling, the cold rolling process is done at ambient temperature. Usually forced cooling is applied to keep the metal temperature below the recrystallization temperature resulting in enhanced physical and surface properties.