Cold Rolling
Cold rolling is a critical process where aluminium thickness is reduced at room temperature to achieve precise dimensions and enhanced mechanical properties.
Using advanced rolling mills such as 6-Hi CVC (Continuous Variable Crown) systems, aluminium coils are passed through multiple rolling stages. This process improves flatness, strength, and surface quality while maintaining tight dimensional tolerances.
Process Overview
- Uncoiling of cast or hot-rolled aluminium
- Multiple rolling passes (rough, intermediate, finish)
- Thickness reduction with high precision
- Surface refinement and flatness control
Key Technologies
- 6-Hi CVC rolling mills for hard alloys
- Stressometers for flatness measurement
- Hot-edge spray systems for shape control
- Feed-forward thickness control systems
Advantages
- High dimensional accuracy
- Improved strength and hardness (work hardening)
- Superior surface quality
- Suitable for automotive, aerospace, and industrial applications
