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 […]
Often a complete beginner will ask what are welders used for? In the case of steels and put simply welders are used for melting metals together. This can be achived by using an electric arc to heat the metal to a molten state and allowing the two pieces to flow together. What are welders used for. Not sure what welders are used for?