There are many benefits to the quality of your welds when the gas metal arc welding process is fully understood and carried out properly. There are five basic tips to follow to achieve this.
- Gas metal arc welding (GMAW) is a semiautomatic welding process that uses a wire electrode fed through a welding gun.
- The benefits of the process include its high deposition rate, efficient use of filler metal, elimination of slag and flux removal, and reduction of smoke and fumes.
- Solid-wire electrodes used in GMAW require a shielding gas to protect the molten weld puddle from impurities in the atmosphere, specifically oxygen and nitrogen.
- Before starting any welding project, make sure the workpiece is as clean as possible.
- Set the power source according to the manufacturer's instructions for wire polarity.
- Follow wire electrode specifications to set the proper wire feed speed (amperage) and voltage.
- Align the proper electrode stick-out with the wire diameter being used.
- Learn proper electrode angles.
- Learn to manipulate the welding gun effectively.
- Control the travel speed as you weld.
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