Method for molding a bulge

Details Method for molding a bulge Method for molding a bulge

1978-12-20

1981-05-05

Crane, Daniel C.

Metal deforming

By application of fluent medium, or energy field

With actuated tool engaging work

72 62, 29421R, 264534, 264570, B21D 2602

Patent

active

042651026

ABSTRACT:
A method for molding a bulge comprises a step of jetting a pressure fluid from a nozzle into a shaped blank fitted thereto thereby causing air trapped in the shaped blank to be agitated into air bubbles to allow the fluid pressure to be applied onto the inner surface of the shaped blank during discharging the liquid from within the blank.

REFERENCES:
patent: 2592867 (1952-04-01), Cuq
patent: 2688297 (1954-09-01), Livermont et al.
patent: 3335590 (1967-08-01), Early
patent: 3443409 (1969-05-01), Matsukin
patent: 3858422 (1975-01-01), Tominaga et al.

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