Process for manufacturing a shaped metal can

Details Process for manufacturing a shaped metal can Process for manufacturing a shaped metal can

1996-03-20

1999-05-04

Larson, Lowell A.

Metal deforming

Process

Tube making or reshaping

723794, B21D 5126

Patent

active

058991069

ABSTRACT:
A process for manufacturing a shaped metal can comprising, on one hand, a bottom (1), a cylindrical peripheral wall (2) in one piece with the bottom (1) and including at least one geometrically expanded region (2A, 2A) and, on the other hand, a lid crimped or seamed on the peripheral wall (2). The process comprises effecting in the region to be geometrically expanded a controlled folding in the form of folds of an accordion of the peripheral wall (2) an on the whole of the height of the region to be geometrically expanded to increase the volume of the metal available in this region, and unfolding the accordion folds of the peripheral wall to obtain a geometrically expanded region (2A, 2B).

REFERENCES:
patent: 877077 (1908-01-01), Hardie
patent: 3247581 (1966-04-01), Pellizzari
patent: 4331014 (1982-05-01), Miller et al.
patent: 5022254 (1991-06-01), Kramer

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