Head for laser working within a tube

Details Head for laser working within a tube Head for laser working within a tube

1990-12-27

1992-07-21

Albritton, C. L.

Electric heating

Metal heating

By arc

21912174, 21912177, B23K 2600

Patent

active

051325080

ABSTRACT:
The tubular casing (3) of the working head (1) exhibits two windows, upstream (4) and downstream (5), opposite each one of which there is mounted a deflecting mirror, a partially reflecting mirror (12) and a totally reflecting mirror (14) respectively. A first optical focusing device (8) is mounted in front of the upstream mirror, and a second optical focusing device (13) is mounted between the downstream mirror and the image focus (11) of the upstream optical device.
Application to the simultaneous performance of a plurality of circular welds in tubes of small diameter.

REFERENCES:
patent: 4827098 (1989-05-01), Kasner et al.
patent: 4839495 (1989-06-01), Kitera et al.
patent: 4978834 (1990-12-01), Griffaton

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