WELD A130: Gas Tungsten Arc Welding Level 1
| Item | Value |
|---|---|
| Curriculum Committee Approval Date | 04/12/2023 |
| Top Code | 095650 - Welding Technology |
| Units | 3 Total Units |
| Hours | 108 Total Hours (Lecture Hours 36; Lab Hours 72) |
| Total Outside of Class Hours | 0 |
| Course Credit Status | Credit: Degree Applicable (D) |
| Material Fee | Yes |
| Basic Skills | Not Basic Skills (N) |
| Repeatable | No |
| Grading Policy | Standard Letter (S),
|
Course Description
GTAW (gas tungsten arc welding) theory and practice covering aluminum and stainless steels and qualification requirements. PREREQUISITE: WELD A100, WELD A101 or WELD A140. Transfer Credit: CSU.
Course Level Student Learning Outcome(s)
- Demonstrate proper safety procedures.
- Join metals in the flat and horizontal positions.
- Join metals utilizing GTAW process.
Course Objectives
- 1. Demonstrate proper safety procedures.
- 2. Demonstrate proper set-up of GTAW equipment
- 3. Demonstrate proper selection of GTAW filler materials.
- 4. Demonstrate proper selection of GTAW tungsten electrode and tip preparation.
- 5. Demonstrate proper cleaning of parent base metal.
- 6. Demonstrate weld joint preparation.
- 7. Weld carbon steel, stainless steel, and aluminum in flat and horizontal positions.
- 8. Demonstrate expertise in theory and manipulative skills.
Lecture Content
Safety Personal safety conduct Eye protection Ventilation Electric shock Safe care of equipment Power Sources Amperage Voltage Constant current Polarities Remote Controls High frequency (start continuous) (purposes and uses) Welding Torch Tungstens Pure, thoriated, striped Points for different metals Contamination Gases Inert and non-inert Flow rate Recommended gases for different metals Weld Preparation Cleanliness Porosity Contamination-oxides Fit-up Material and Filler Metals Carbon Steel Aluminums Stainless steels Other exotic metals Projects Carbon Steel 1. Tee joints, butt joints, lap joints and corner joints in flat and horizontal positions. B. Aluminum 1. Tee joints, butt joints, lap joints and corner joints in flat and horizontal positions C. Stainless steels 1. Tee joints, butt joints, lap joints and corner joints in flat and horizontal positions D. Other metals (those that meet student needs)
Lab Content
Safety Personal safety conduct Eye protection Ventilation Electric shock Safe care of equipment Power Sources Amperage Voltage Constant current Polarities Remote Controls High frequency (start continuous) (purposes and uses) Welding Torch Tungstens Pure, thoriated, striped Points for different metals Contamination Gases Inert and non-inert Flow rate Recommended gases for different metals Weld Preparation Cleanliness Porosity Contamination-oxides Fit-up Material and Filler Metals Carbon Steel Aluminums Stainless steels Other exotic metals Projects Carbon Steel 1. Tee joints, butt joints, lap joints and corner joints in flat and horizontal positions. B. Aluminum 1. Tee joints, butt joints, lap joints and corner joints in flat and horizontal positions C. Stainless steels 1. Tee joints, butt joints, lap joints and corner joints in flat and horizontal positions D. Other metals (those that meet student needs)
Method(s) of Instruction
- Lecture (02)
- DE Live Online Lecture (02S)
- Lab (04)
- DE Live Online Lab (04S)
Instructional Techniques
Lecture, demonstrations, skills evaluation, and critique
Reading Assignments
Proficiency demonstrations, written examinations
Writing Assignments
Proficiency demonstrations, written examinations
Out-of-class Assignments
Proficiency demonstrations, written examinations
Demonstration of Critical Thinking
Written examinations and manipulative skill tests
Required Writing, Problem Solving, Skills Demonstration
Written examinations and manipulative skill tests
Eligible Disciplines
Welding: Any bachelors degree and two years of professional experience, or any associate degree and six years of professional experience. : Title 5, section 53415.
Textbooks Resources
1. Required Galvery, William and Frank Marlow. Welding Essentials: Questions and Answers , 2nd ed. New York: Industrial Press, 2007 2. Required Jeffus, Larry. The Essential Welder/Gas Tungsten Arc Welding Classroom Manual, ed. Chicago: Delmar Thompson Learning, 0 Rationale: latest
Other Resources
1. Orange Coast College welding safety test booklet