The relation between the cross sectional configurations of cold-rolled thin strips and the diameters of bowed strips after slitting has been investigated. When a cold-rolled strip is multi-slitted, an edge-rippled of a center-buckled strip will bow in its plane by the widthwise variation both in elastic strain and in plastic strain. The diameters of bowing due to both effects can be calculated by the equations (6), (11) in edge-rippled strips, and (10), (12) in center-buckeld strips respectively. These results have been ascertained by the slitting experiment of some cold-rolled strips
