Tubular connection method

Details Tubular connection method Tubular connection method

2005-01-18

2005-01-18

Hong, John C. (Department: 3726)

Metal working

Method of mechanical manufacture

Shaping by direct application of fluent pressure

C029S507000, C029S428000

Reexamination Certificate

active

06842956

ABSTRACT:
A process for forming a tubular component including at least a first tubular element connected end to end with a second tubular element, the process including location an end portion of the first tubular element within an end portion of the second tubular element to thereby define respective inner and overlapping end portions, hydro-forming the overlapping end portions to radially expand the inner end portion into face to face contact with the outer end portion and in the region of the expanded overlapping end portions, mutually deforming the inner and outer end portions to define one or more mechanical lock formations for preventing relative axial movement between the first and second tubular elements.

REFERENCES:
patent: 3002269 (1961-10-01), Hopkins
patent: 4151632 (1979-05-01), Green

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