Cold Rolling Force Calculator

Sergafat engineering tools

Cold Rolling Force Calculator

v1.4 · Numerical slab/Bland–Ford-type calculation with Hollomon work hardening, prerolling, strip tensions and iterative roll flattening. Runs entirely in this web page.

Material and rolling parameters

Steel grade Entry thickness (mm) Exit thickness (mm) Strip width (mm) Friction coefficient μ Top WR diameter (mm) Bottom WR diameter (mm) Prerolling Previous reduction (%)

Strip tension

Entry tension (kN) Entry stress (MPa) Exit tension (kN) Exit stress (MPa)

Model uses 601 points along the arc of contact

Roll force—kN

Equivalent flattened WR diameter—mm

Arc of contact—mm

Neutral point from exit—mm

Forward slip—ratio

Screwdown (mill modulus 4,200 kN/mm)—mm

Pressure distribution

All X axes: 0 = strip exit; maximum arc length = strip entry. Dashed vertical line marks the neutral point.

Engineering estimate, not validated against production measurements. The equivalent flattened diameter represents contact curvature, not the physical work-roll outside diameter. Calculations remain on your device; this static page does not upload input data.