主权项 |
1. A method of making a can end, the method comprising forming a can end shell in a shell press and converting the can end shell into a can end, in which the step of forming the can end shell comprises pressing sheet metal into a shell, the shell having a seaming panel (2), countersink bead (3) and centre panel (4), the step of pressing the shell further including forming one or more features in the centre panel (4) of the end, the method further comprising transferring the can end shell to a conversion press and, in a sequence of operations, moving material inwardly from the end shell feature towards the centre of the end to set the final geometry of the can end. |