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WLD 221 Gas Tungsten Arc Welding
Credit Hours:  3
Effective Term: Fall 2014
SUN#: N/A
AGEC: None  
Credit Breakdown: 2 Lectures, 3 Labs
Times for Credit: 1
Grading Option: A/F
Cross-Listed:


Description: Techniques of Gas Tungsten Arc welding, including the theory, operation, safety, care and maintenance of the Gas Tungsten Arc Welding equipment, both manual and digital. Additionally, students will use oxy-acetylene torch and tungsten inner gas welding processes on ferrous and non-ferrous metals with various joint designs.

Prerequisites: None

Corequisites: None

Recommendations: Per welding advisory committee.

Measurable Student Learning Outcomes
1. (Evaluation Level) Explain, demonstrate and self-critique the safe working habits and procedures related to gas tungsten arc welding 100% of the time within a lab demonstration setting for welding trades.
2. (Application Level) Identify and demonstrate the appropriate setup and use of designated welding machines.
3. (Synthesis Level) Analyze, explain and demonstrate the operation of AC/DC welding machine a minimum of 100% of the lab time.
4. (Application Level) Demonstrate the appropriate welding techniques for a minimum of three different types of metals.
5. (Synthesis Level) Analyze, explain and demonstrate the operation of tungsten inner gas torch (TIG): manual and digital, water cooled and air cooled at a minimum of 100% of the lab time.
6. (Synthesis Level) Analyze, explain and demonstrate the operation of oxy-acetylene and gas tungsten arc welding of aluminum and steel.
7. (Evaluation Level) Select proper tungsten percentage: 1% or 2%.
8. (Analysis Level) Identify, explain and demonstrate the test sequence for a minimum of three common weld defects.
9. (Evaluation level) Detect, explain and critique the causes of weld defects: inclusion, porosity, penetration and undercut in a given weld.
Internal/External Standards Accreditation
Standards met per American Welding Society Standards (www.aws.org): http://www.aws.org/w/a/certification/CW/