Electric heating – Metal heating – By arc
Reexamination Certificate
2011-04-05
2011-04-05
Ralis, Stephen J (Department: 3742)
Electric heating
Metal heating
By arc
C219S130400, C219S130500, C219S130510, C219S1370PS
Reexamination Certificate
active
07919728
ABSTRACT:
A welding current controlling method is provided for an arc welding process using a consumable electrode and including an alternate repetition of a short-circuiting state and an arc generating state occurring between the consumable electrode and a base material. In the method, a neck detection is performed for the molten electrode in the short-circuiting period of time to determine if a new arc is established between the consumable electrode and the base material. Upon detection of the neck, the welding current is sharply decreased. After the new arc is established, the welding current is increased from a low level to a high level with a predetermined inclination selected for reducing vibration to the molten pool.
REFERENCES:
patent: 4544826 (1985-10-01), Nakanishi et al.
patent: 4546234 (1985-10-01), Ogasawara et al.
patent: 4866247 (1989-09-01), Parks et al.
patent: 6087626 (2000-07-01), Hutchison et al.
patent: 7304269 (2007-12-01), Fulmer et al.
patent: 2003/0080101 (2003-05-01), Flood et al.
patent: 2006/0207983 (2006-09-01), Myers et al.
patent: 59-206159 (1984-11-01), None
patent: 60-108179 (1985-06-01), None
patent: 03094977 (1991-04-01), None
Era Tetsuo
Ide Akihiro
Daihen Corporation
Hamre Schumann Mueller & Larson P.C.
Ralis Stephen J
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