Cold rolling Benefits

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

The main advantages of rolling are :

• The fiber formation of the material is not disrupted,
• No removal or cutting of material,
• Enable high accuracy : tolerance ±0,01mm,
• Improves mechanical characteristcs,
• Increases hardness and breaking strength by 30%,
• Improves fatigue strength up to 100%,
• Prevents fractures starting by smoothing surfaces,
• Saves time and material,
• Enables very large lengths to be rolled.

Smooth surfaces

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

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

Improves mechanical characteristcs

the material fibers are not cut, but distorted. :

This feature increases tensile strength

Increases hardness