Description
Objectives
Learning Objective 1 • State the basic concepts of open-root GTAW of carbon-steel pipe and explain how to prepare for welding.
- State the basic concepts of GTAW.
- Identify common welding safety practices.
- Explain how to prepare the area, materials, and equipment for GTAW carbon-steel pipe welding.
Learning Objective 2 • Describe open-root V-groove pipe welding positions and GTAW pipe-welding techniques.
- Identify and describe the four pipe welding positions and acceptable weld profiles.
- Describe the techniques for GTAW and how to make the root and fill passes.
- Describe the techniques required to produce GTAW open-root V-groove carbon-steel pipe welds in all positions.
Performance Tasks
Performance Task 1 (Learning Objective 2) • Make GTAW open-root V-groove carbon-steel pipe welds in the 1G-ROTATED position using carbon-steel filler metal and argon gas.
Performance Task 2 (Learning Objective 2) • Make GTAW open-root V-groove carbon-steel pipe welds in the 2G position using carbonsteel filler metal and argon gas.
Performance Task 3 (Learning Objective 2) • Make GTAW open-root V-groove carbon-steel pipe welds in the 5G position using carbonsteel filler metal and argon gas.
Performance Task 4 (Learning Objective 2) • Make GTAW open-root V-groove carbon-steel pipe welds in the 6G position using carbonsteel filler metal and argon gas.
