Isostatic bulge forming

Details Isostatic bulge forming Isostatic bulge forming

1993-10-14

1995-05-30

Jones, David

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72 56, 294211, B21D 2606

Patent

active

054191718

ABSTRACT:
A method and apparatus are provided for isostatically bulge forming tube stock. The tube is assembled in sealing arrangement with a split die. The assembly is placed in a pressure vessel wherein an non-compressible fluid is pressurized to form the tube into the die cavities. Because the force on the tooling is compressive in nature, relatively low strength, low cost tools may be used.

REFERENCES:
patent: 2372917 (1946-04-01), Tuttle
patent: 2442801 (1948-06-01), Pietro
patent: 3090113 (1963-05-01), Karpovich
patent: 3359624 (1967-12-01), Cours et al.
patent: 3462821 (1969-08-01), Cours et al.
patent: 3463035 (1969-08-01), Bright
patent: 3564886 (1971-02-01), Nakamura
patent: 3685327 (1972-08-01), Nakamura
patent: 3858422 (1975-01-01), Tominaga et al.

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