Method and apparatus for forming elongate tubular members into a

Details Method and apparatus for forming elongate tubular members into a Method and apparatus for forming elongate tubular members into a

1987-01-20

1989-02-14

Jones, David

Metal deforming

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

By individually non-deforming clamps

72297, 72305, 72369, 72 57, B21D 1102

Patent

active

048038784

ABSTRACT:
The apparatus forms an elongate tubular member into a predetermined shape while preventing crimping of the walls of the member and comprises jaws for holding the member at its opposing ends and a pressurizer for pressurizing the interior of the member to a predetermined pressure greater than atmospheric pressure while being held sufficient to provide increased effective regidity and crimp resistance to the walls of the member. A die exerts a force against the member sufficient to form the member into a predetermined shape while pressurized. The pressure within the member is released after the member has been formed into its desired shape.

REFERENCES:
patent: 3105537 (1963-10-01), Foster
patent: 3459025 (1969-08-01), Bath
patent: 3948071 (1976-04-01), Lieberman et al.

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