Method for arc-welding the blades to the disc or counterdisc of

Details Method for arc-welding the blades to the disc or counterdisc of Method for arc-welding the blades to the disc or counterdisc of

1980-06-12

1981-11-24

Goldberg, Elliot A.

Electric heating

Metal heating

By arc

219127, B23K 9225

Patent

active

043026575

ABSTRACT:
For welding rotor blades to a rotor disc of a rotary machine, a welding process is used wherein grooves, called blind slots, are formed through the disc wall thickness but not to the extent to pass through the entire thickness, whereafter the blades are basted by a Tungsten Inert Gas run without added welded material, the blind slots being then filled up by a series of Tungsten Inert Gas welding passes but with added weld material. Headroom limitations are offset and the weld seams come out more robust and with a better surface quality.

REFERENCES:
patent: 2031138 (1936-02-01), Taylor
patent: 3204083 (1965-08-01), Fromm
patent: 3209122 (1965-09-01), Johnston
patent: 3688080 (1972-08-01), Cartwright

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