Gas tungsten arc welding electrode

Details Gas tungsten arc welding electrode Gas tungsten arc welding electrode

1975-07-25

1977-01-11

Truhe, J. V.

Electric heating

Metal heating

By arc

219 75, 219121R, 219145, 3132313, B23K 924

Patent

active

040028780

ABSTRACT:
An improved electrode and electrode working tip for a gas tungsten arc welding apparatus. The face of the working tip of the electrode is formed as a narrow ring coaxial with the electrode and having an area less than the area of electron emission for the operating currents of the electrode. The reduced area of the narrow annular ring forces the area of electron emission to spread to the immediately adjacent walls. The improved electrode working tip provides a more stable and uniform plasma of reduced diameter for improved precision and repeatability in welds which is the ability to consistently reproduce welding parameters. The electrode tip also has a significantly increased working life.

REFERENCES:
patent: 3027446 (1962-03-01), Browning
patent: 3076085 (1963-01-01), Sundstrom
patent: 3131288 (1964-04-01), Browning
patent: 3246115 (1966-04-01), Johnson
patent: 3343027 (1967-09-01), Frohlich
patent: 3471675 (1969-10-01), Sargent et al.
patent: 3569661 (1971-03-01), Ebeling, Jr. et al.
patent: 3676639 (1972-07-01), Esiban et al.
patent: 3780259 (1973-12-01), Meyer

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