Description
Objectives
Learning Objective 1 • State the basic concepts of open-root GTAW of low alloy and stainless steel pipe and how to prepare for welding.
- State the basic concepts of low alloy and stainless steel pipe welding using the GTAW process.
- Identify common welding safety practices.
- Explain how to prepare the area, materials, and equipment for low alloy and stainless steel pipe welding using the GTAW process.
Learning Objective 2 • Describe open-root V-groove pipe welding positions and GTAW pipe-welding techniques.
- Describe the techniques used to apply GTAW to low alloy and stainless steel pipe.
- Describe how to make the root pass with a gas backing.
- Describe the techniques required to produce open-root GTAW low alloy and stainless steel pipe welds in various positions.
Performance Tasks
Performance Task 1 (Learning Objective 2) • Make GTAW open-root V-groove low alloy or stainless steel pipe welds in the 2G position using the appropriate filler metal and a gas backing.
Performance Task 2 (Learning Objective 2) • Make GTAW open-root V-groove low alloy or stainless steel pipe welds in the 5G position using the appropriate filler metal and a gas backing.
Performance Task 3 (Learning Objective 2) • Make GTAW open-root V-groove low alloy or stainless steel pipe welds in the 6G position using the appropriate filler metal and a gas backing
