
When Roll forming machine be invented, it brings up the development of our industry. Roll forming, often called open-section forming, uses successive sets of roller dies to bend a strip of steel progressively until the desired shape is achieved. This process is very similar to traditional tube - and pipe making, but differs in that it can form more complicated sections.
Roll forming is a new and novel process for production of close tolerance metallic products and is close to the earlier plastics sheet roll forming processes for various profiles and other shapes. The procedure is applied to generally steel and aluminum sheets that need to be converted to profiles of different shapes and sizes. It is greatly superior and more economical than conventional forming or shaping processes thus resulting in wide acceptance of the method by a number of end users and converting or fabrication companies.

