Manual metal arc welding
Manual metal arc welding (MMAW)
In the mechanical industry, especially in welding, it has a vast number of welding. MMAW ( Manual metal arc welding)is one of the earliest welding types in this industry. MMAW welding procedure forms an electric arc comprising of a hand-held, flux-coated, consumable filler wire as well as the workpiece. While the arc heat can melt the parent metal and filler wire, the flux coating breaks down in the arc to produce a gaseous shield that deprives of atmosphere gases from the weld zone. Besides the flux coating also provides a de-oxidising action and creates a slag on the cooling weld
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The MMAW welding process needs a suitable and constant current power source (AC or DC), a handpiece, a work clamp, leads and flux-covered consumable electrodes. Solidified slag Electrode flux Electrode Shielding gases Arc column OR Arc plasma Weld metal Parent metal Direction of travel
The expenditure of MMAW ( Manual metal arc welding ) equipment is not expensive and in easy utilization so that welder with the basic knowledge and simple practice can apply the MMAW process to create suitable welds. Meanwhile, professional operators use the mig welding machine in India to weld practically any material in virtually any situation
Popular applications for MMAW (Manual metal arc welding) consist of these elements below:.
- light/heavy/fabrication
- general engineering
- site work
- repairs.
