Method and apparatus for curling an article

An apparatus for forming a curl on an article having a welded seam, the apparatus comprising:

• a first forming tooling having a first set of rollers mounted on a common head, the first set of rollers having a respective groove having a first groove radius, the first set of rollers being configured to form a first curl having a first curl radius on an open end of the article;
• a first rotating turret configured to load the article into the first forming tooling;
• a second forming tooling having a second set of rollers mounted on a common head, the second set of rollers having a respective groove having a second groove radius, the second groove radius being larger than the first groove radius, the second set of rollers being configured to form a modified curl having a second curl radius near the top of the modified curl and maintain the first curl radius near the bottom of the modified curl;
• a second rotating turret configured to load the article into the second forming tooling;
• and
• a first transfer star wheel configured to transfer the article from the first rotating turret to the second rotating turret.