Shaping without cutting, by stamping, spinning, or deep-drawing

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

B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing

B21D22/02Stamping using rigid devices or tools B21D22/022by heating the blank or stamping associated with heat treatment B21D22/025for tubular articles B21D22/027for flattening the ends of corrugated sheets B21D22/04for dimpling B21D22/06having relatively-movable die parts B21D22/08with die parts on rotating carriers B21D22/10Stamping using yieldable or resilient pads B21D22/105of tubular products B21D22/12using enclosed flexible chambers B21D22/125of tubular products B21D22/14Spinning B21D22/16over shaping mandrels or formers B21D22/18using tools guided to produce the required profile B21D22/185making bombed objects B21D22/20Deep-drawing B21D22/201Work-pieces; preparation of the work-pieces B21D22/203of compound articles B21D22/205Hydro-mechanical deep-drawing B21D22/206articles from a strip in several steps, the articles being coherent with the strip during the operation B21D22/208by heating the blank or deep-drawing associated with heat treatment B21D22/21without fixing the border of the blank B21D22/22with devices for holding the edge of the blanks B21D22/225with members for radially pushing the blanks B21D22/24involving two drawing operations having effects in opposite directions with respect to the blank B21D22/26for making peculiarly B21D22/28of cylindrical articles using consecutive dies B21D22/283with ram and dies aligning means B21D22/286with lubricating or cooling means B21D22/30to finish articles formed by deep-drawing