Roll folding method for folding edge portion of sheet metal component such as outside trim portion of motor vehicle, involves forming planar folding arc portion and curved folding arc portions in support roller surface

摘要

The support region (15) of the sheet metal component (3) is supported on a folding bed and the radial outer roller surface of a folding roller is supported at the fold region (14). The radial outer surface of the support roller is supported on the folded sheet (16). The planar folding arc portion (24) and the curved folding arc portions (25,26) are formed in the support roller surface. An independent claim is included for roll folding apparatus for folding edge portion of sheet metal component.