Method and installation for laser welding a spacer grid of a fue

Details Method and installation for laser welding a spacer grid of a fue Method and installation for laser welding a spacer grid of a fue

1996-06-28

1998-03-10

Walberg, Teresa J.

Electric heating

Metal heating

By arc

21912164, 21912176, B23K 2608

Patent

active

057264180

ABSTRACT:
A laser-beam welding device forming part of a set of at least four welding devices (13a, 13b, 13c, 13d) is introduced into each of the cells of a set of at least four cells (36a, 36b, 36c, 36d), along the axis of the cell in such a way that the welding laser beam (38a, 38b, 38c, 38d) of the welding device is aligned with an edge of the cell (36a, 36b, 36c, 36d). A laser-beam weld is simultaneously produced along at least a part of the length of an edge of each of the cells (36a, 36b, 36c, 36d) of the set of cells and relative displacement between the grid (35) and the welding devices (13a, 13b, 13c, 13d) is carried out in order to introduce the welding devices into at least four new cells of the grid which are arranged in a square. The invention also relates to a device for welding a grid via the interior of the cells of the grid and to an installation for fast welding of a grid.

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Patent Abstracts of Japan, vol. 15, No. 30, Nov. 6, 1990, JP2-271293.
Patent Abstracts of Japan, vol. 10, No. 83, Nov. 8, 1985, JP60-223693.

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