Method of manufacturing a non-linear composite tube

Details Method of manufacturing a non-linear composite tube Method of manufacturing a non-linear composite tube

1994-12-19

1996-02-20

Bryant, David P.

Metal working

Method of mechanical manufacture

Shaping by direct application of fluent pressure

2989008, 72369, 228155, B23P 1700

Patent

active

054918839

ABSTRACT:
A composite tube and method of manufacture are provided. The composite tube is formed from a plurality of tube segments which are different from one another. The tube segments may differ in cross-sectional dimensions and/or material of manufacture. The tube segments are welded in end-to-end relationship to define a composite tube. The composite tube is then bent into a selected non-linear shape. Preferably, the welds are disposed at locations on tangents between adjacent bends. Bending forces and bending speed are altered from one bend to the next in view of anticipated strength and metallurgical characteristics of the particular tube segment in which the bend is being carried out.

REFERENCES:
patent: 3276541 (1966-10-01), Deremer
patent: 3404445 (1968-10-01), Crouse
patent: 3889772 (1975-06-01), Kelley
patent: 4732025 (1988-03-01), Marlinga et al.
patent: 4928509 (1990-05-01), Nakamura
patent: 4959984 (1990-10-01), Trudell et al.
patent: 5333775 (1994-08-01), Bruggemann et al.
Dittrich et al., United States Statutory Invention Registration, Reg. No. H82, Jul. 1, 1986.

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