Process for the production of a conical shell using sheet metal

Details Process for the production of a conical shell using sheet metal Process for the production of a conical shell using sheet metal

1986-06-04

1988-04-05

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Plural or complex apparatus

72386, 72368, 72420, B21D 5110, B21D 4309

Patent

active

047350768

ABSTRACT:
A method of producing a conical shell from a metal sheet cut to size. The method includes feeding the sheet in a nip between two transport rollers an incremental distance between respective positions in which nonparallel straight line generatrices on the sheet defining the shell to be produced are in an aligned with the nip, translating a bending roller into engagement with the sheet to incrementally bend the sheet in a direction perpendicular to the generatrix between the nip, then retracting the bending roller away from the sheet, and successively repeating the above steps until the sheet is in the shape of the conical shell to be produced.

REFERENCES:
patent: 2674294 (1954-04-01), Ekberg
patent: 3016082 (1962-01-01), Miller
patent: 3091279 (1963-05-01), O'Neill
patent: 3459020 (1969-08-01), Morita et al.
patent: 3505852 (1970-04-01), Sassak
patent: 3623349 (1971-11-01), Hausler
patent: 4195509 (1980-04-01), Herburg
patent: 4312208 (1982-01-01), Schafer

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