| 摘要 |
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.
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