Cold rolling Benefits

The cold rolling brings many advantages, better mechanical strength for example.

The main advantages of rolling are :

Smooth surfaces

With rolling, it is possible to obtain a roughness Ra = 0.02:

Etat de surface

This quality enhances the resistance to oxidation, eliminates incipient cracks and reduces mechanical friction with the nut and greatly increases the yield couples of worms. We can classify surface conditions between the various modes of obtaining threads

To ensure the best quality we realize your threads by rolling !

Improves mechanical characteristcs

the material fibers are not cut, but distorted. :

Thread by removing metal : the fibers are cut
Thread rolling : the fibers are distorted

This feature increases tensile strength

Increases hardness

Déformation de la matière