Abstract: A can end (10) has a curl (14) extending circumferentially about a longitudinal axis (50). A circumferential wall (15) extends downwardly. A strengthening member (16) is joined to lower segment of the circumferential wall (15). A center panel (12) extends radially inwardly from the circumferential strengthening member (16). A rivet (38) attaches a tab (28) to the center panel (12). A cover is attached to the tab (28) and is rotation therewith. A frangible score (24) in the center panel (12) is breakable to form a pour opening (27) in the center panel (12). The cover is rotatable to overlay the pour opening (27) and effectively reclose the pour opening (27) in a reclosed condition of the can end (10).

Abstract: A can end (10) has a curl (14) extending circumferentially about a longitudinal axis (50). A circumferential wall (15) extends downwardly. A strengthening member (16) is joined to lower segment of the circumferential wall (15). A center panel (12) extends radially inwardly from the circumferential strengthening member (16). A rivet (38) attaches a tab (28) to the center panel (12). A cover (60) is attached to the tab (28) and is rotation therewith. A frangible score (24) in the center panel (12) is breakable to form a pour opening (27) in the center panel (12). The cover (60) is rotatable to overlay the pour opening (27) and effectively reclose the pour opening (27) in a reclosed condition of the can end (10).

Abstract: The present invention relates to the use of medium manganese steels for hot stamping to produce ultra high strength steel blanks with improved residual ductility of hot formed steels (as compared to boron-added steels such as 22MnB5 grade). The medium manganese steel sheets require much lower processing temperatures (<700° C. vs. >900° C.) prior to forming operation, allowing reduction of energy consumption during manufacturing.