Abstract
The purpose of this study is to develop the new multipurpose roll forming system named Flexible Roll Bending System. In particular, to product taper spiral pipe is ultimate target. This system which consists of feeding rolls and forming rolls can bend and twist the thin metal plate according to the forming roll moment in vertical direction and inclining. The relative height of the forming roll to the feeding roll level affects the feeding roll direction curvature, and the angle of forming rolls affects the torsion ratio of the spiral. By adding a unit of in-plane bending between feeding roll and forming roll, arc-shaped strip was could be bent to taper spiral tube.
