Method and apparatus for forming end panels for containers...

Details Method and apparatus for forming end panels for containers... Method and apparatus for forming end panels for containers...

B - Operations, Transporting

21

D

113/41, 190/80

B21D 51/44 (2006.01) B21D 51/14 (2006.01)

Patent

CA 1280701

ABSTRACT A method of forming a container end panel having a countersink radius (R) and a chuckwall (CW) including pre- forming the radius and the chuckwall so that the chuckwall includes a straight wall portion (CW1) tangent to the radius and reforming and reducing the radius without tooling re- straint while holding pressure against the straight wall area. Apparatus for performing the method includes a punch core (12) and a cooperating die core ring (63) having com- plimental geometry for forming the chuckwall and radius configuration. The article formed by the method and appara- tus includes an end panel having a straight wall portion (CW2) between the normal tapered wall portion and counter- sink radius.

542699

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