Electric heating – Metal heating – By arc
Patent
1974-03-28
1976-11-02
Grimley, Arthur T.
Electric heating
Metal heating
By arc
219125R, B23K 912
Patent
active
039899217
ABSTRACT:
A method and an apparatus for non-consumable electrode type automatic arc welding in which the length of an arc produced between a non-consumable electrode and a workpiece which is being welded, is automatically controlled to an optimum value by means of an electric drive motor for driving an electrode according to a signal obtained by proportionally integrating or multiplying the voltage difference between the arc voltage detected by using an integrating element and the set reference voltage.
REFERENCES:
patent: 2223177 (1940-11-01), Jones
patent: 2636102 (1953-04-01), Lobosco
patent: 3262006 (1966-07-01), Sciaky et al.
patent: 3443057 (1969-05-01), Allen et al.
patent: 3694621 (1972-09-01), Wofsey
patent: 3775582 (1973-11-01), Iceland
patent: 3777115 (1973-12-01), Kazlauskas et al.
Akahori Ken-ichi
Arai Toshio
Ihochi Akihiko
Kada Hironosuke
Ohi Atsushi
(Kobe Steel, Ltd.)
Grimley Arthur T.
Shaw Clifford C.
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