MMA Welding Machine Although the manual metal arc (MMA) process has relatively basic equipment requirements, it is important that the Welding Machine has a knowledge of operating features and performance to comply with welding procedures for the job and, of course, for safety reasons.
The main components of the equipment required for welding are:
» power source
» electrode holder and cables
» Welding Machine protection
» fume extraction
Tools required include: a wire brush to clean the joint area adjacent to the weld (and the weld itself after slag removal); a chipping hammer to remove slag from the weld deposit; and, when removing slag, a pair of clear lens goggles or a face shield to protect the eyes (lenses should be shatter-proof and noninflammable).