Non-consumable composite welding electrode

Details Non-consumable composite welding electrode Non-consumable composite welding electrode

1979-09-20

1982-08-10

Truhe, J. V.

Electric heating

Metal heating

Weld rod structure

21914621, B23K 3504, B23K 3532

Patent

active

043439837

ABSTRACT:
An improved tungsten inert gas-shielded non-consumable composite welding electrode having a solid tungsten rod center (12) and a concentric outer sleeve (14) substantially lower in electrical resistivity than the tungsten rod, bonded adhesively and cohesively to the tungsten by flame spraying so that the surface irregularities of the mating surface areas of the tungsten and outer sleeve mechanically interlock. The improvement is provided by coating the outer sleeve onto the tungsten center and adhesively and cohesively bonding the interface of the surface area of contact to maintain a minimum resistance electric coupling at welding operating temperatures.

REFERENCES:
patent: 2010605 (1935-08-01), Miller
patent: 2462463 (1949-02-01), Boot
patent: 2794898 (1957-06-01), Gibson
patent: 3610877 (1971-10-01), Driscoll
Welding Handbook, Sixth Edition, Section Two, "Welding Processes:" Gas, Arc and Resistance; American Welding Society, N.Y., 1969, Chapter 29-Thermal Spraying.

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