Bending sheet metal along straight lines

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING METAL

B21D5/00Bending sheet metal along straight lines

B21D5/002Positioning devices B21D5/004with program control B21D5/006combined with measuring of bends B21D5/008combined with heating or cooling of the bends B21D5/01between rams and anvils or abutments B21D5/015for making tubes B21D5/02on press brakes without making use of clamping means B21D5/0209Tools therefor B21D5/0218Length adjustment of the punch B21D5/0227Length adjustment of the die B21D5/0236Tool clamping B21D5/0245Fluid operated B21D5/0254Tool exchanging B21D5/0263Die with two oscillating halves B21D5/0272Deflection compensating means B21D5/0281Workpiece supporting devices B21D5/029with shearing devices B21D5/04on brakes making use of clamping means on one side of the work B21D5/042With a rotational movement of the bending blade B21D5/045With a wiping movement of the bending blade B21D5/047Length adjustment of the clamping means B21D5/06by drawing procedure making use of dies or forming-rollers B21D5/08making use of forming-rollers B21D5/083for obtaining profiles with changing cross-sectional configuration B21D5/086for obtaining closed hollow profiles B21D5/10for making tubes B21D5/12making use of forming-rollers B21D5/14by passing between rollers B21D5/143making use of a mandrel B21D5/146one roll being covered with deformable material B21D5/16Folding Pleating