The rolling pressure is the force exerted by the metal on the roll perpendicular to the horizontal projection of the contact area when the rolled piece is deformed, as shown in Figure 1.
It is an important parameter for formulating rolling process procedures and designing rolling mills.
Figure 1 Rolling pressure during rolling. Rolling pressure is generally calculated with the following formula: P total = p average S contact. In the formula, P total – total rolling pressure, N; p average – average unit pressure, MPa; S contact. ——Contact area, mm2.