Apparatus and methods for simultaneously necking and flanging a can body member

摘要

Apparatus and methods for simultaneously necking and flanging an unformed end portion next adjacent a rim portion of a cylindrical side wall portion of a sheet metal can body member to form a curved necked-in wall portion in the unformed end portion next adjacent and connected to the side wall portion and to form a radially and axially outwardly extending flange portion between the formed curved necked-in portion and the rim portion comprising: