METHOD FOR PRODUCING A TUBULAR HOLLOW BODY FROM A BLANKED METALLIC SHEET, AND UNDERCARRIAGE OR BODY COMPONENTS WITH A HOLLOW BODY PRODUCED ACCORDING TO THE METHOD

摘要

The invention relates to a method for producing a tubular, preferably tubular curved hollow body (5 ') from a cut metal circuit board, wherein the hollow body (5') is produced from the board using a UO-forming, so that the hollow body (5 ' ) after the UO-forming of the board has a slot or edge impact (4.4) along two abutting edges (4.3) of the formed board. In order to economically produce such hollow bodies, in particular tubular-arc-shaped hollow bodies (5 ') for weight-optimized and / or space-optimized chassis and body components (1, 2), the method according to the invention provides for at least one after a work operation (OP10, OP30) is partially U-shaped, at least one reinforcing element (6, 6 ', 6 ") inserted into an at least partially U-shaped portion of the formed board (4) and the inside connected to the same material fit, preferably welded, and that subsequently at least a further operation (OP50) is performed, in which the U-shaped formed board (4) to the tubular hollow body (5, 5 ') is transformed.