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WLD 222 Gas Metal Arc Welding
Credit Hours:  3
Effective Term: Spring 2016
SUN#: None
AGEC: None  
Credit Breakdown: 2 Lectures, 3 Labs
Times for Credit: 3
Grading Option: A, B, C, D, F
Cross-Listed:  


Description: Focus on short-circuiting, spraying and globular transferring of ferrous and non-ferrous metals and flux-cored welding in the flat and horizontal positions, with an emphasis on proper use and care of equipment and safety procedures.

Prerequisites: WLD110

Corequisites: None

Recommendations: None

Measurable Student Learning Outcomes
1. (Application Level) Explain and demonstrate safe working habits and procedures within a lab setting related to the welding trades.
2. (Application Level) Explain and demonstrate the operation of AC/DC welding machines.
3. (Application Level) Explain and demonstrate the operation of a spool-gun using aluminum 0.035 wire, 0.035 steel wire and 0.035 stainless steel wire.
4. (Application Level) Explain and demonstrate how to use manual and digital setting machines.
5. (Analysis Level) Compare and contrast aluminum 4043 with solid wire 70S-6 to determine appropriate uses of each.
6. (Analysis Level) Examine and explain the use of flux-cored wire E71-T.
7. (Comprehension Level) Explain the uses of 25-75 gas and argon gas for appropriate welding methods.
8. (Synthesis Level) Perform welded joints in the flat and horizontal positions with emphasis on proper use and care of equipment.
9. (Evaluation Level) Detect and assess the cause of weld defects: inclusion, porosity, penetration and undercut in a given weld. Explain and demonstrate how to correct the weld.
10. (Application Level) Explain and identify the formation of porosity in a weld and demonstrate the appropriate measures for correcting the defect.
11. (Evaluation Level) Explain, demonstrate and critique three parameters of a good weld: penetration, crown height and weld pattern (ripple per inch).
Internal/External Standards Accreditation
American Welding Society Standards (www.aws.org): See http://www.aws.org/w/a/certification/CW/.