MMA Process:
Manual Metal Arc (MMA) welding, also known as Stick welding, is a manual arc welding process that uses a consumable electrode coated in flux to lay the weld. An electric current, in the form of either alternating current (AC) or direct current (DC) from a welding power supply, is used to form an electric arc between the electrode and the metals to be joined. As the weld is laid, the flux coating of the electrode disintegrates, giving off vapors that serve as a shielding gas and providing a layer of slag, both of which protect the weld area from atmospheric contamination.
Because of the versatility of the process and the simplicity of its equipment and operation, manual metal arc welding is one of the world’s most popular welding processes.
Features:
– Most commonly called stick welding
– Also known as MMA (Manual Metal Arc), and SMAW (Shielded metal arc welding)
– MMA welders are ideal for general repairs and maintenance
– Can weld in windy, outdoor conditions
– Simple in operations & portable
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