Method and apparatus for continuous production of tubular bodies

Details Method and apparatus for continuous production of tubular bodies Method and apparatus for continuous production of tubular bodies

1987-09-18

1989-05-02

Albritton, C. L.

Electric heating

Metal heating

By arc

21912164, B23K 2600

Patent

active

048270997

ABSTRACT:
Method and apparatus for the continuous industrial production of tubular bodies in which coated or uncoated steel strip is formed to a slit tube and the opposite strip edges are longitudinally seam welded at high speed by a laser beam of high energy density under protective gas with or without supply of additive material, and after a preparation adapted to the narrow melt zone and bringing together of the strip edges a fusion welding with subsequent controlled cooling and upsetting is carried out which results in a seam geometry suitable for any further processing.

REFERENCES:
patent: 4315132 (1982-02-01), Saurin et al.
patent: 4341943 (1982-07-01), Nilsen
patent: 4719329 (1988-01-01), Matzuno et al.

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