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