Metal deforming – By use of closed-die and coacting work-forcer – Cup or shell drawing
Patent
1993-08-18
1995-03-07
Larson, Lowell A.
Metal deforming
By use of closed-die and coacting work-forcer
Cup or shell drawing
723794, B21D 2228
Patent
active
053947274
ABSTRACT:
A method of forming a drawn metal cup for a container body which includes drawing a cup having a circular boss in its base wall, redrawing the cup and forming a pressure resistant profile in its base wall.
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Diekhoff Hans H.
Smith, Jr. George L.
Aluminum Company of America
Brownlee David W.
Larson Lowell A.
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