What is arc welding?

WHAT IS ARC WELDING? Arc or MMA (Manual Metal Arc) Welding is the oldest example of currently used electric welding procedures, and perhaps the most straight forward to use and understand. The principle of arc welding is simple; a relatively large current is passed through a welding rod (or filler rod) of the appropriate metal (Mild steel for welding steel etc.) and a circuit is completed through it when it comes into contact with the earthed metal being welded. The join between the welding rod and the work being welded […]

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