Electric heating – Metal heating – By arc
Patent
1996-06-27
1998-01-06
Shaw, Clifford C.
Electric heating
Metal heating
By arc
219137PS, B23K 9067
Patent
active
057057907
ABSTRACT:
A method is indicated for igniting a welding arc between a fixed electrode and a metal workpiece to be welded, whereby a covering protective gas is supplied by a nozzle that extends into the welding area. Before a welding power source is switched on for the welding arc, an auxiliary arc supplied by an auxiliary power source is ignited, which ignites the welding arc after the welding power source is switched on. To better ionize the welding area and ensure the ignition of the auxiliary welding arc, a high-frequency electric arc is produced in the welding area between the nozzle and the workpiece by means of a pulse generator which produces high-frequency high-voltage pulses.
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Uniwema Instruction Manual article from Kabel und Metallwerke Gutehoffnungshu tte AG, Apr. 1975 issue.
Welding Processes-Arc and Gas Welding and Cuting, Brazing and Soldering, Welding Handbook, Seventh Edition, vol. 2, 1978 by American Welding Society, Miami, Florida, W.H. Kearns, Editor, pp. 94-97.
Klebl Wolfram
Titze Gunter
Alcatel Kabel AG & Co
Shaw Clifford C.
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