Can shell, and associated tooling and method

A method of forming a can shell, the method comprising:

• forming a preform shell;
• and
• reforming the preform shell into a can shell,
• wherein the can shell includes a center panel, an inclined panel wall extending at a downward angle from the center panel, and a looped countersink formed around the inclined panel wall, the looped countersink starting at an inverted point of the inclined panel wall and looping around to an outer countersink wall, wherein the inverted point is proximate to the outer countersink wall.

Tooling for forming a can shell including a center panel, an inclined panel wall extending at a downward angle from the center panel, and a looped countersink formed around the inclined panel wall, the looped countersink starting at an inverted point of the inclined panel wall and looping around to an outer countersink wall, wherein the inverted point is proximate to the outer countersink wall, the tooling comprising:

• first tooling structured to reform a preform shell into the can shell, the first tooling including:
• upper tooling having an upper die center and an upper pressure pad;
• and
• lower tooling having a lower pressure pad and a lower die ring,
• wherein the upper tooling and the lower tooling are structured to be brought together to reform a preform shell into the can shell,
• wherein the upper die center includes a central portion corresponding in shape to an upper surface of the center panel and an outer portion corresponding in shape to an upper surface of the inclined panel wall,
• wherein the lower pressure pad is spring back and includes an upper surface corresponding in shape to a lower surface of the center panel, and
• wherein the lower outer die ring includes an inner portion shaped to accommodate the inclined panel wall and the looped countersink.