Electric heating – Metal heating – By arc
Patent
1979-12-03
1982-12-28
Shaw, C. C.
Electric heating
Metal heating
By arc
219 60A, 21912433, 228 32, B23K 902
Patent
active
043663630
ABSTRACT:
An arc welding system for welding the edges of an irregularly contoured product comprising facially opposed sections held in joined position wherein, in the embodiment illustrated, a pair of arc welding torches, having arc generating tips are supported in product straddling relationship on a carriage for welding travel along different irregularly contoured lengths of the perimetral marginal boundary of the product, and control mechanism is provided for simultaneously altering the position of each torch tip in a portion of its welding travel to maintain each torch tip axis substantially perpendicular to the path of travel.
REFERENCES:
patent: 2522146 (1950-09-01), Tichenor et al.
patent: 2914011 (1959-11-01), Morton
patent: 2927195 (1960-03-01), Arnaud
patent: 3658232 (1972-04-01), Dill
patent: 3737614 (1973-06-01), Paulange
patent: 4112289 (1978-09-01), Mead et al.
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