Method and apparatus for forming a fluted can body

Details Method and apparatus for forming a fluted can body Method and apparatus for forming a fluted can body

1991-12-13

1993-11-16

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72 92, 723794, B21D 1502

Patent

active

052612619

ABSTRACT:
A method and apparatus are described for forming a plurality of axially extending externally concave complete flutes defining a fluted profile in a cylindrical can body 1. The apparatus comprises a correspondingly profiled mandrel 11 of maximum diameter less than the minimum diameter of the cylindrical can body and comprising a whole number of complete flutes which is less than the number of flutes on the finished can body, an elongate rail 14, means 12 for locating a cylindrical can body over the mandrel, and means 10 for rolling the mandrel relative to the rail to deform a portion of the cylindrical can body between the mandrel and the rail into the fluted profile.

REFERENCES:
patent: 666672 (1901-01-01), Hoffman
patent: 1378442 (1921-05-01), Chalfant
patent: 1605828 (1926-11-01), Frahm
patent: 2101309 (1937-12-01), Burns
patent: 4169537 (1979-10-01), Sabreen et al.
patent: 4246770 (1981-01-01), Franek et al.
patent: 4487048 (1984-12-01), Frei
patent: 4578976 (1986-04-01), Shulski et al.
patent: 4756174 (1988-07-01), Anderson et al.
patent: 5040698 (1991-08-01), Ramsey et al.

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