Method for forming large 360 degree sheet metal shapes using lon

Details Method for forming large 360 degree sheet metal shapes using lon Method for forming large 360 degree sheet metal shapes using lon

1993-07-21

1995-02-14

Jones, David

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72 58, B21D 3908, B21D 2602

Patent

active

053884400

ABSTRACT:
A method for reshaping 360.degree. sheet metal cylinders by longitudinal end loading simultaneous with gas pressure applied to the inside of the cylinder directing the metal into dies resulting in new shapes without thinning, in a clean atmosphere.

REFERENCES:
patent: 2631640 (1953-03-01), Zallea
patent: 3335590 (1967-08-01), Early
patent: 3611768 (1971-10-01), Odagaki
patent: 3974675 (1976-08-01), Tominaga
patent: 4414834 (1983-11-01), Gratzer et al.
patent: 5097689 (1992-03-01), Pietroban
patent: 5214948 (1993-06-01), Sanders

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