GMAW – Open-Root Pipe Welds – Module ID 29302-16

GMAW – Open-Root Pipe Welds – Module ID 29302-16

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Module Two (29302-16) presents gas metal arc welding (GMAW)—a form of welding that joins two metals together using a filler metal wire electrode and a shielding gas. GMAW is an effective method for making highquality, open-root V-groove welds on pipe. This module covers some basic concepts of open-root GMAW of pipe and describes how to prepare and perform open-root V-groove welds on medium- and thick-walled pipe in all positions.

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SKU: 29302-16 Category: Tag:

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.

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