Strength and rigidity are important

Strength and rigidity are important characteristics of the rolls used to form product in metal rolling manufacture. The particular attributes of the rolls will affect dimensional accuracy as well as other factors in the operation. During the rolling process great forces act upon the rolls. Rolls will be subject to different degrees of deflection. In any particular metal rolling process, it is important to understand how these deflections will affect the rolls and hence the work being rolled. The rolls initially start out flat. During a basic flat rolling operation, it can be observed that the work material will exert greater force on the rolls towards the center of the material than at its edges. This will cause the rolls to deflect more at the center, and hence gives the work a greater thickness in the middle.