In order to get uniform thickness of the plate by rolling process, one provides

Explanation:

Camber:

• The variation of sheet thickness along with its width is called camber.
• The following three types of cambers are observed on rolled sheets.

1. Convex - The sheet is thicker in the middle and thinner towards the edges.
2. Concave - The sheet is thinner in the middle and thicker toward the edges.
3. Triangular - The sheet is thicker on one side and thinner on the other.

Cambering of Rolls:

• The convex shape of the sheet is mainly due to the deflection or bending of rolls like a beam.
• An increased diameter at the middle of rolls designed to counterbalance the bending of the rolls when they are subjected to high pressures during rolling.