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Oct 31, 2025
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WLD 297 - GTAW Processes
Credits: 3
2 Lecture Hours 2 Lab Hours
Prerequisites: WLD 296
Co-requisites: WLD 295
Description
This Sheet Metal Apprentice course is an application of the GMAW welding process as it applies to the industrial, food service and ornamental metal industries. Students will perform work on both aluminum and stainless steel. Work will focus on applying basic welding skills to applications which require much more discipline and advanced technique.
Learning Outcomes
Upon successful completion of the course, the student will:
- Set up a typical GTAW welding machine in terms of polarity, current and pulse settings to execute a weld given metal type, base thickness and position to weld in.
- Select appropriate tungsten electrode given base metal type.
- Choose appropriate shielding gas given base metal type and welding procedure sheet.
- Execute butt, lap, and tee and outside corner welds on aluminum in both flat and vertical positions.
- Execute butt, lap, tee and outside corner welds on stainless steel in both flat and vertical positions.
- Execute butt, lap, tee and outside corner welds on black iron in both flat and vertical positions.
- Perform maintenance and minor repair operations on GTAW equipment.
- Describe metallurgical characteristics of non-ferrous metals in terms of crystalline structure, tensile strength and ductility.
- Grind and polish Stainless steel welds to acceptable fit and finish for food service work.
Listed Topics
- Metallurgy of Non-Ferrous Metals
- Arc Shape and Tungsten Forming
- Shielding Gases Used on Non-Ferrous Metals
- GTAW Techniques
- Parts of a GTAW Torch and Assembly
- GTAW Machine Parts and Adjustments
- Grinding and Polishing Stainless Steel
Approved By: Johnson, Alex Date Approved: 5/5/2008
Last Reviewed: 5/9/2019
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