Performance includes the ability to place equipment in operation; perform minor repairs; select machine setting, electrodes, and shielding gas; and perform the following procedures:
- perform fillet and groove welds in flat, horizontal, and vertical positions using GMAW-S
- perform fillet and groove welds in flat, horizontal, and vertical positions using GMAW spray transfer.
Process/Skill Questions:
- What are the effects of the voltage setting being too low? Too high?
- What indicates that a liner needs replacing?
- What shielding gases may be used for the spray transfer method on carbon steel?