What is the primary function of rolling in manufacturing?

The primary function of rolling in manufacturing is to reduce material thickness. During the rolling process, metal is passed through a pair of opposing rolls, which compresses the material and elongates it, effectively reducing its thickness while increasing its length. This process is essential in the production of sheets, plates, and foils in various industries, allowing for the creation of materials that meet specific requirements for strength, durability, and flexibility.

The rolling process can be performed hot or cold, each of which has distinct advantages depending on the material properties desired. Hot rolling is typically used for large structural shapes, while cold rolling produces a finished product with superior surface quality and tighter tolerances. Overall, the primary goal of rolling is to alter the thickness and shape of a material without changing its overall composition significantly.