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Gas Tungsten Arc Welding (GTAW)
Gas Tungsten Arc Welding (GTAW)
GTAW Equipment and Supplies
- An AC/DC arc welding power source
- Shielding Gas Supply
- Shielding Gas regulator
- Gas Flow Meter
- Hoses and Fittings for Shielding Gas
- Electrode Lead, Workpiece Lead, and Hoses
- Tungsten Electrodes
- Welding Rods
- Approved Welding Helmet, Gloves, and Welders Clothing
Optional Equipment and Supplies
- Arc Timers
- Foot-or-Finger-Operated emote amperage control
- Water Cooling System with Hoses for Heavy Duty Welding
Advantages of GTAW
- Concentrated Arc-Permits pinpoint control of heat making a small narrow heat-affected zone on the workpiece
- No slag due to no requirements for flux
- No sparks or spatter compared to other welding processes
- Little Smoke or Fumes compared to other welding processes
- Good for welding thinner metals
- Good for welding dissimilar metals together
Disadvantages of GTAW
- Slower/Lower travel speeds
- Lower filler metal deposition rate
- Hand-eye coordination is a required skill
- Brighter UV rays than other welding processes
- Equipment costs can be higher than other welding processes
- Approved ventilation system is required or an approved air-supplied respirator
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