Article From thefabricator.com By Mike Sammons Brief Summary: Frequently asked questions about gas tungsten arc welding (GTAW): 1. Should I use an air-cooled or water-cooled torch?
• For low-amperage applications, an air-cooled torch cooled by shielding gas works well • For high-amperage applications, you can still use an air-cooled torch, but the cable and torch must be much heavier and may be cumbersome to manipulate. • A water-cooled torch, which circulates water through the torch and cable, works equally well, but requires additional equipment and maintenance. • Whether you choose a water-cooled system depends on your willingness to invest in additional equipment, as well as additional time and money for maintenance. Many welders, however, prefer these systems because the smaller torch configuration provides better maneuverability and reduces operator fatigue.
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