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Advantages and disadvantages of cold rolling
2024-10-13

Advantages: Fast molding speed, high output, and no damage to the coating. It can be made into a variety of cross-sectional forms to meet the needs of usage conditions; Cold rolling can cause significant plastic deformation in steel, thereby increasing its yield point.


Disadvantages:

1. Although there is no hot plastic compression during the forming process, residual stresses still exist in the cross-section, which inevitably affects the overall and local buckling characteristics of the steel;

2. The style of cold-rolled steel is generally an open section, which reduces the free torsional stiffness of the section. It is prone to torsion when subjected to bending and bending and buckling when subjected to compression, resulting in poor torsional performance;

3. Cold rolled formed steel has a relatively small wall thickness and is not thickened at the corners where the plates are connected, resulting in weak ability to withstand localized concentrated loads.

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