Method and apparatus for laser beam welding of longitudinal seam

Details Method and apparatus for laser beam welding of longitudinal seam Method and apparatus for laser beam welding of longitudinal seam

1987-09-11

1988-09-06

Albritton, C. L.

Electric heating

Metal heating

By arc

21912164, 21912176, 21912177, B23K 2600

Patent

active

047695226

ABSTRACT:
Method and apparatus for laser-beam welding of longitudinal seams in container bodies feature overlapping longitudinal ends of a metal sheet, the length of the transverse ends of which exceeds a predetermiined circumferential dimension for the container body, into such a position relative to one another that they form an acute angle and define an angular opening, and the edge of one longitudinal end is oriented toward the inner face of the other longitudinal end. At least one focused laser beam, which is capable of relative movement with respect to this angular opening and parallel to the longitudinal ends, is aimed into the angular opening and locally melts portions of the longitudinal ends. The locally-molten longitudinal end portions are pressed against one another before they drop below the welding temperature to form a welded longitudinal seam.

REFERENCES:
patent: 4237363 (1980-07-01), Lemelson
patent: 4315132 (1982-02-01), Savrin et al.
patent: 4354090 (1982-10-01), Nilsen
patent: 4675489 (1987-06-01), Opprecht et al.

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