Question

The cold rolling process requires very heavy forces for the accomplishment of rolling operation.

(a) True

(b) False

The question was posed to me in an online quiz.

I'm obligated to ask this question of Cold Rolling topic in chapter Mechanical Working of Metals of Casting-Forming-Welding II

Answer 1

Right choice is (a) True

Easiest explanation: In the cold rolling process, the metal plate is compressed between the gaps of two large heavy rollers. This process does not require much of heating the metal plate, so it becomes very difficult to alter the shape of material as the temperature of a material is less than its re-crystallization temperature, and strain hardening also occurs which further makes the metal hard. Hence, this process requires very heavier forces for the accomplishment of rolling operation.