Roller levelling

Used at the end of the forming line to remove shape defects using plastic bending and stretching.

• A sheet is driven through 3 cylinders.
• Small contact areas require a fine mesh.
• ALE keeps a fine mesh between the cylinders.
• CPU : 50min (ALE) vs 2 days (Lagrangian).

Classical transient Lagrangian model:

The proposed ALE model of continuous roll forming: