Preparation should include equipment and materials such as
- power source
- shielding gas supply
- shielding gas regulator
- gas flow meter
- shielding gas hoses and fittings
- electrode lead, workpiece lead, hoses
- welding torch
- tungsten electrodes.
Process/Skill Questions:
- What safety precautions should be taken when preparing equipment and materials for GTAW operations?
- What types of power sources can be used for GTAW operations?
- Why do some systems use water in the welder?
- What types of metal are typically welded using GTAW?
- How do you determine what type of tungsten is used for a given weld?
- What does a clean welding surface look like?