Welding plates for a fuel rod grid

Details Welding plates for a fuel rod grid Welding plates for a fuel rod grid

1982-09-01

1985-01-08

Albritton, C. L.

Electric heating

Metal heating

By arc

219121LY, 376438, 376442, B23K 2700

Patent

active

044928440

ABSTRACT:
Welding plates for laser beam welding of a fuel rod grid are provided, each welding plate having a surface with a set of equally spaced, parallel grooves and with a second set of such grooves perpendicular to the first set. Each of the welding plates is provided with openings therethrough at the points of intersection of the straps forming the grid, so as to expose those points of intersection to a laser beam for laser beam welding of the points of intersection. A vane side welding plate has the walls of the laser beam access openings placed so as to hold vanes extending from the straps in deflected position. Stand-off pins and clamping bolts are provided, the latter having heads with access openings for the laser beam. The welding plates are provided with protrusions which extend laterally thereof, the protrusions having precisely located holes with precision bushings therein.

REFERENCES:
patent: 3110961 (1963-11-01), Melill et al.
patent: 4128235 (1978-12-01), Gersbacher

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