Central Arizona College Back
WLD 245 Pipe Welding 3
Credit Hours:  3
Effective Term: Fall 2016
SUN#: None
AGEC: None
Credit Breakdown: 2 Lectures, 3 Labs
Times for Credit: 1
Grading Option: A/F Only

Description: This course covers GTAW and SMAW processes on various piping systems. Carbon steel and Stainless steel pipe welding procedures will be practiced. Focus will be on welding techniques and procedures used in high pressure piping and pressure vessels according to applicable codes. Special attention will be given to quality control and safety practices. Students will practice butt weld pipe fabrication exercises using fittings such as flanges, elbows, and saddle connections. Code requirements, inspection methods and welder qualifications will be discussed. Prerequisites: WLD135

Prerequisites: WLD 135

Corequisites: None

Recommendations: Students should have completed WLD 135 or have the comparable skill sets to be successful in this course.

Measurable Student Learning Outcomes
1. (Application Level) Explain and demonstrate safe working habits and procedures 100% of the time within a lab setting related to the pipe welding trades.
2. (Application Level) Explain and demonstrate the operation of a DC welding machine a minimum of 100% of the lab time.
3. (Application Level) Explain and demonstrate the operation of GTAW and SMAW machines a minimum of 100% of the lab time.
4. (Analysis Level) Recognize and select the proper welding rod and size for the alloy of the pipe and joint design being welded.
5. (Analysis Level) Setup the welding machine with proper polarity, amperage, and process to complete welding procedure.
6. (Synthesis Level) Measure and cut pipe per job specifications using mechanical tools,oxy-acetylene and plasma arc cutting torches.
7. (Analysis Level) Examine root pass for 100% penetration.
8. (Analysis Level) Examine, detect and explain the cause of weld defects: inclusion, porosity, penetration and undercut, under fill and burn through in a given pipe weld.
9. (Application Level) Explain and demonstrate pipe design, lay-out and fabrication using drawings and code requirements.
10.(Knowledge Level) Describe applicable pipe welding code requirements for joint design, weld quality, inspection methods and welder qualifications.

Internal/External Standards Accreditation
Standards per American Petroleum Institute (API) & American Society of Mechanical Engineers (ASME)