Consider a flat rolling operation of an aluminum 1100-0 workpiece. the initial thickness of the workpiece is 0.25 in, width is 8 in and the roll radius is 10 in. if the workpiece thickness is reduced by 0.02 inches per pass, findthe roll force for each of the first three passes: h1=0.23in, h2=0.21in; h3=0.19in. assume an ideal rolling operation (i. e. friction is zero) and that deformation follows plane strain assumptions. there’s an example rolling calculation on the canvas lab website for 3221.