Central Arizona College

WLD 125 Pipe Welding I

Credit Hours: 5
Effective Term: Fall 2019
SUN#: None
AGEC: None

Credit Breakdown: 3 Lectures, 6 Labs
Times for Credit: 1
Grading Option: A, B, C, D, F
Cross-Listed:

Description: Basic pipe welding of underground and industrial pipelines. Students will cut, bevel, fit and weld open root pipe joints.Primary focus will be the practice of the welding techniques needed to produce an acceptable root pass. This course will introduce pipe fitting tools and along with common work site safety practices. Pipe fitting trade math will be introduced to assist students with the fit up and fabrication of various pipe joint designs.

Prerequisites: None

Corequisites: None

Recommendations: None

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. (CSLO 3) 2. (Application Level) Explain and demonstrate the operation of a DC welding machine a minimum of 100% of the lab time. (CSLO 3) 3. (Application Level) Explain and demonstrate the operation of oxy-acetylene, and plasma arc torch cutting a minimum of 100% of the lab time. (CSLO 3) 4. (Analysis Level) Recognize and select the proper welding rod for the alloy of the pipe being welded. (CSLO 4) 5. (Analysis Level) Setup the welding machine with proper polarity, of DC reverse, to complete the pipe welding procedure. (CSLO 4) 6. (Synthesis Level) Measure and cut pipe per job specifications using oxy-acetylene and plasma arc cutting torches. (CSLO 3, 4) 7. (Analysis Level) Examine root pass for 100% penetration. (CSLO 2, 3) 8. (Analysis Level) Examine, detect and explain the cause of weld defects: inclusion, porosity, penetration and undercut in a given pipe weld. (CSLO 2)
Internal/External Standards Accreditation
Standards per American Petroleum Institute (API) & American Society of Mechanical Engineers (ASME). Standards per National Center for Construction Education & research. (nccer.org)