Experimental research on the continuous roll forming of three-dimensional surface parts

Continuous roll forming is a new sheet metal forming process for three-dimensional surface parts. In the process, the sheet metal is thinned non-uniformly in transverse direction by controlling the distribution of the gap between the upper and lower forming rolls, the longitudinal elongation is different, which makes the sheet metal generate a doubly curved surface parts. The rolling speed and the thickness of sheet metal etc. have great influence on the forming results. In this paper, a series of experiments of continuous roll forming have been carried out, the radii of curvature in the longitudinal and lateral directions were measured, and the effects of the rolling speed and the thickness of sheet metal are obtained.