| 摘要 |
The present invention suppresses stretch flange breakage when manufacturing a stretch flange molded component manufactured with stretch flange molding. Provided is a manufacturing method that manufactures the stretch flange molded component provided with a top plate part (3) that has a first recessed outer peripheral edge part (3a) and a flange part (7) that is continuous with a vertical wall part (5), curved to a top plate part (3) side, and has a second recessed outer peripheral edge part (7a), wherein a step shaped part (8) is formed curved in the direction of the plate thickness with a crest line (9) extending along the second recessed outer peripheral edge part (7a) so as to surround the second recessed outer peripheral edge part (7a) in a position which becomes the flange part (7). |
