Method of forming a drawn and redrawn container body

Details Method of forming a drawn and redrawn container body Method of forming a drawn and redrawn container body

1985-09-03

1987-08-11

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

72349, B21D 2221

Patent

active

046853227

ABSTRACT:
A method of forming a drawn and redrawn container body which includes forming an inwardly projecting annular bead in the end wall of a drawn cup to be redrawn in order to prevent wrinkling in the end wall when it is subsequently formed into a pressure-resistant profile.

REFERENCES:
patent: 1999229 (1935-04-01), Benedict
patent: 2872887 (1959-02-01), Praturlon
patent: 3811393 (1974-05-01), Close
patent: 3905507 (1975-09-01), Lyu
patent: 3998174 (1976-12-01), Saunders
patent: 4099475 (1978-07-01), Lee, Jr.
patent: 4151927 (1979-05-01), Cvacho et al.
patent: 4177746 (1979-12-01), Lee, Jr. et al.
patent: 4294373 (1981-10-01), Miller et al.
patent: 4372143 (1983-02-01), Elert et al.
patent: 4503702 (1985-03-01), Bulso

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