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Oct 31, 2024
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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 course is designed for students in the Sheet Metal Apprentice program. Students learn the application of the gas tungsten arc welding (GTAW) process as it applies to the industrial, food service and ornamental metal industries. Students perform work on both aluminum and stainless steel and apply hands-on basic welding skills to applications which require much more discipline and advanced techniques.
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 welding position.
- Select appropriate tungsten electrode given base metal type.
- Choose appropriate shielding gas given base metal type and welding procedure sheet.
- Execute butt, lap, 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
Reference Materials
Instructor-approved textbook and materials
Students who successfully complete this course acquire general knowledge, skills and abilities that align with CCAC’s definition of an educated person. Specifically, this course fulfills these General Education Goals: - Critical Thinking & Problem Solving
Approved By: Dr. Quintin B. Bullock Date Approved: 04/26/2024
Last Reviewed: 04/26/2024
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