Advantages and disadvantages of cold rolling

Advantages:

 forming speed, high yield, and do not damage the coating, can be made into a variety of section forms, to meet the needs of the use of conditions; Cold rolling can produce large plastic deformation of steel, thus increasing the yield point of steel.

Disadvantages:

1. Although there is no thermal plastic compression in the forming process, there is still residual stress in the section, which will inevitably affect the overall and local buckling characteristics of the steel;

2. The style of cold rolled steel is generally open section, so that the free torsional stiffness of the section is low. Torsion is easy to appear when bending, bending and torsion buckling is easy to appear when compression, and the torsional resistance is poor;

3. The wall thickness of cold rolled steel is small, and there is no thickening at the corner of plate connection, and the ability to bear localized concentrated load is weak.

The material: VW 50065 CR210LA