Catalog Description
- Transfer Status
- CSU
- Prerequisite
- WLD 22, WLD 24, WLD 25, WLD 26, WLD 40, WLD 50, WLD 154 and NCCER Level II Welding Qualification
- Corequisite
- WLD 28, WLD 30, WLD 32, WLD 34, WLD 36, WLD 56, WLD 156
- Unit(s)
- 2.00
- Lecture: 34.00 Contact hours/68.00 Out of class hours/102.00 Total hours/2.00 Unit(s)
- Total: 34.00 Contact hours/68.00 Out of class hours/102.00 Total hours/2.00 Unit(s)
Course Description: This course instructs on the qualifications and knowledge requirements of a Certified Welding Inspector (CWI). Methods of testing, various procedures, and techniques of inspection. familiarize students with the basic concepts of destructive and nondestructive evaluation processes. Emphasis of record keeping methods used by the American Welding Society (AWS), American Society of Mechanical Engineers (ASME), American Petroleum Institute (API), and American National Standards Institute (ANSI).
Objectives
Upon successful completion of this course, the student should be able to:
- Apply testing symbols to weldments according various welding standards.
- Apply codes to weldments that are currently used in the welding industry.
- Describe the role of a CWI in fabrication and the qualification of a welder.
Course Content
Topic Titles / Suggested Time Topic
Lecture
| Topics | Lec Hrs |
|---|---|
Introduction and safety | 1.00 |
Application and scope | 0.50 |
Definitions a. Definitions of welding terms | 1.50 |
Symbols a. Nondestructive testing symbols | 2.00 |
Ethical and essential requirements for a CWI a. Ethical requirements | 2.00 |
Welding inspection operations a. Knowledge of drawings, specifications, manufacturing instructions | 2.00 |
Quality assurance a. Organization requirements | 1.00 |
Welding metallurgy a. Mild carbon steel | 3.00 |
Preheating and postweld heat treating a. Preheating | 1.00 |
Weld and weld-related discontinuities a. Dimensional discontinuities | 3.00 |
Welding procedure specifications a. Description and important details | 2.00 |
Qualification of welding procedure specifications a. Description | 1.00 |
Qualification of welders and welding operations a. Performance qualification requirements | 1.50 |
Selection of samples of welding tests a. Procedural sampling methods | 1.00 |
Destructive testing of welds a. Chemical tests | 1.50 |
Proof and leak tests a. Proof tests | 1.00 |
Nondestructive testing a. Inspection by visual testing | 3.00 |
Qualification of nondestructive testing personnel | 2.00 |
Codes and standards | 3.00 |
Metric practice a. The SI system | 1.00 |
| Total Hours: | 34.00 |
Methods of Instruction
- Demonstrations
- Discussion
- Homework: Students are required to complete two hours of outside-of-class homework for each hour of lecture
- Instructor Demonstrations
- Multimedia Presentations
- Student application
Methods of Evaluation
- Exams/Tests
- Quizzes
- Homework
- Assignments
Examples of Assignments
Reading Assignments
- Read chapter 1 and be prepared to discuss in class.
- Read assigned AWS journal article and be prepared to discuss in class.
Writing Assignments
- Write an essay explaining how the assigned AWS article can be implemented into the process and how it relates to the class.
- Describe an order of operations for the assigned destructive testing (DT) method of an SVOG pipe welding joint.
Out-of-Class Assignments
- Research the proper process for setting up nondestructive testing (NDT) equipment using an AWS publication.
- Define assigned vocabulary words and also explain how to prevent these weld defects from occurring.
Recommended Materials of Instruction
AWS Committee on Methods of Inspection. (2000). Welding Inspection. -, 3.
National Center for Construction Education and Research (NCCER). (2010). Welding Level Three. Pearson Education INC, 4th.
National Center for Construction Education and Research (NCCER). (2010). Welding Level Two. Pearson Education INC, 4th.
Other Learning Materials
All tools listed in the Butte College Welding Technology Program Guide.
Minimum Qualifications
Welding