Method for making a necked container

Details Method for making a necked container Method for making a necked container

1983-03-28

1985-07-09

Gilden, Leon

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

493 1, 493 69, B21B 2200

Patent

active

045274126

ABSTRACT:
A method and apparatus for making a necked container are disclosed wherein a sheet material is formed into a generally cylindrical tubular member and the adjacent longitudinally extending edges of the sheet are butt welded. The welded tubular member is progressively necked-in over a dome-shaped surface of a single mandrel provided within the welded tubular member. The free end of the necked end portion of the tubular member is trimmed and curled to form a necked container body.

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patent: 4392764 (1983-07-01), Kubis
patent: 4403493 (1983-09-01), Atkinson

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