Roll forming is an advanced metal plastic deformation technology widely used in the field of metal processing. Its working principle is mainly based on the rotational movement of rollers and the extrusion force applied to the metal material to achieve the shaping.
During the roll forming process, the metal material is first placed within the space between the rollers. Rollers are typically composed of two or more rollers with different diameters, connected to each other through gear or chain drives, and maintain the same rotational speed. As the rollers rotate, their contact surfaces exert pressure on the metal material, causing plastic deformation under the force of extrusion.
The shape of the rollers is key to roll forming, and it should be determined based on the required shape of the product. For instance, to produce cuΩ purlins, the rollers need to be designed to roll out the shape of the purlin. During the rolling process, the metal material is gradually pushed towards the entry end of the rollers, continuing to be subjected to the extrusion force until it reaches the desired shape and dimensions.
The roll forming process has advantages such as high production efficiency, material savings, high product strength, and stable quality. Compared to cutting and grinding processes, roll forming is particularly suitable for processing long and difficult-to-cut workpieces, as well as mass production. Additionally, roll forming can adjust the thickness of the formed product by changing the gap between the rollers and can adjust the shape of the product by altering the shape of the rollers, thus meeting various production needs.
In summary, the working principle of cuΩ purlin roll forming is to use the rotational movement of rollers and the extrusion force to cause plastic deformation of the metal material, thereby producing metal products of the required shape. This process has advantages such as high efficiency, conservation, high strength, and stable quality, making it an important forming technology in the field of metal processing.