Cold bending forming is a new technology and new technology for metal sheet forming which is material-saving, energy-saving and efficient. Using this process, not only can produce high-quality steel products, but also can shorten the product development cycle and improve production efficiency, thereby improving the market competitiveness of enterprises.

In the past half century, cold bending forming has developed into the most effective sheet metal forming technology. 35% to 45% of strip steel rolled in North America is processed into products by cold forming, which is more than steel used in the automotive industry. In recent years, cold-formed steel products have been widely used as important structural parts in many fields such as construction, automobile manufacturing, shipbuilding, electronics industry, and machinery manufacturing. Its products range from ordinary rails, doors and windows and other structural parts to some special profiles manufactured for special purposes.

Cold-formed steel has better cross-sectional performance per unit weight than hot-rolled steel products, and has high surface finish and dimensional accuracy. Therefore, cold-formed steel can replace hot-rolled steel to achieve the dual effect of saving steel and energy, so people are cold The development of bent steel is given high priority. It is the continuous desire of users for the variety, specifications and quality of cold-formed steel products, which promotes the rapid development of cold-formed forming technology.