WLDG 141 - GTAW Theory and Practical Application

Credit(s): 4

Prerequisite(s): WLDG 136.
This course provides an in-depth exploration of Tungsten Inert Gas (TIG) welding techniques, focusing on precision welding of stainless steel, aluminum, and various exotic metals. Students will develop advanced skills in material preparation, heat management, filler selection, and weld aesthetics while adhering to industry standards. (Spring Semester)

Course Learning Outcomes: Upon completion of the course, students will be able to

Demonstrate GTAW safety practices, including the proper use of personal protective equipment (PPE), handling of materials, and workspace organization to prevent hazards.
Explain the function of GTAW equipment components, including the torch, power source, shielding gas system, and tungsten electrodes, and describe routine maintenance procedures.
Identify and select appropriate GTAW filler metals for aluminum, stainless steel and other material applications, ensuring compatibility with base materials and welding processes.
Explain the purpose and selection of shielding gases in GTAW, highlighting their roles in protecting the weld pool and enhancing weld quality.
Set up GTAW equipment in alignment with the specific requirements of the base material, including tungsten selection, gas flow settings, and power adjustments.
Use GTAW to perform single and multiple-pass fillet welds in all positions, demonstrating consistent weld quality and adherence to specifications.
Perform multiple-pass GTAW butt-joint welds in all positions, ensuring proper joint penetration and bead placement.
Explain the proper setup, materials, and techniques for using GTAW to weld stainless steel and aluminum, focusing on preparation, heat management, and filler metal selection.
Demonstrate proficiency in using GTAW to weld stainless steel and aluminum, producing welds that meet industry standards for strength and appearance.
Identify the types, sizes, and applications of tungsten electrodes for GTAW, and demonstrate proper preparation techniques for DC and AC welding processes.
Demonstrate proper material preparation techniques for GTAW, including cleaning, edge preparation, and joint fit-up, to optimize welding outcomes.