12/4/2024 6:59:42 AM |
| Changed Course |
CATALOG INFORMATION
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Discipline and Nbr:
WELD 104 | Title:
GAS TUNGSTEN ARC WELDING |
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Full Title:
Introduction to Gas Tungsten Arc Welding (GTAW) |
Last Reviewed:3/9/2020 |
Units | Course Hours per Week | | Nbr of Weeks | Course Hours Total |
Maximum | 2.00 | Lecture Scheduled | 1.00 | 17.5 max. | Lecture Scheduled | 17.50 |
Minimum | 2.00 | Lab Scheduled | 3.00 | 6 min. | Lab Scheduled | 52.50 |
| Contact DHR | 0 | | Contact DHR | 0 |
| Contact Total | 4.00 | | Contact Total | 70.00 |
|
| Non-contact DHR | 0 | | Non-contact DHR Total | 0 |
| Total Out of Class Hours: 35.00 | Total Student Learning Hours: 105.00 | |
Title 5 Category:
AA Degree Applicable
Grading:
Grade or P/NP
Repeatability:
00 - Two Repeats if Grade was D, F, NC, or NP
Also Listed As:
Formerly:
Catalog Description:
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An introduction to the principles of gas tungsten arc welding (GTAW), setup/use of GTAW equipment, and safe use of tools and equipment. Provides instruction in welding carbon steel, stainless steel, and aluminum weld joints in various positions.
Prerequisites/Corequisites:
Course Completion of WELD 170 ( or WELD 70 or WELD 70A)
Recommended Preparation:
Eligibility for ENGL 100 OR EMLS 100 (formerly ESL 100) or equivalent
Limits on Enrollment:
Schedule of Classes Information
Description:
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An introduction to the principles of gas tungsten arc welding (GTAW), setup/use of GTAW equipment, and safe use of tools and equipment. Provides instruction in welding carbon steel, stainless steel, and aluminum weld joints in various positions.
(Grade or P/NP)
Prerequisites:Course Completion of WELD 170 ( or WELD 70 or WELD 70A)
Recommended:Eligibility for ENGL 100 OR EMLS 100 (formerly ESL 100) or equivalent
Limits on Enrollment:
Transfer Credit:
Repeatability:00 - Two Repeats if Grade was D, F, NC, or NP
ARTICULATION, MAJOR, and CERTIFICATION INFORMATION
Associate Degree: | Effective: | | Inactive: | |
Area: | | |
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CSU GE: | Transfer Area | | Effective: | Inactive: |
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IGETC: | Transfer Area | | Effective: | Inactive: |
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CSU Transfer: | | Effective: | | Inactive: | |
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UC Transfer: | | Effective: | | Inactive: | |
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C-ID: |
Certificate/Major Applicable:
Both Certificate and Major Applicable
COURSE CONTENT
Student Learning Outcomes:
At the conclusion of this course, the student should be able to:
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1. Demonstrate safe use of the tools and equipment in a welding shop.
2. GTAW weld in various positions.
3. Demonstrate competent hand-eye coordination necessary to control molten metal and produce aesthetically pleasing appearance and strength in various metals.
Objectives:
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At the conclusion of this course, the student should be able to:
1. Categorize the personal traits that employer look for in their employees.
2. Describe the GTAW process and list the other terms used to identify the process.
3. Evaluate safety issues as they pertain to shop safety, industrial safety, and personal safety
and apply appropriate safety protective measures.
4. Recall common terminology used in the application of welding operations.
5. Organize common weld joint considerations and list the types of welds that can be applied to
each joint.
6. Analyze welding operation requirements for common applications and select the proper
power source.
7. Correctly assemble the parts of a GTAW welding station and GTAW torch.
8. Name common GTAW tungsten electrodes and discuss their advantages/disadvantages for
welding common metal alloys.
9. Identify common AWS filler metal specifications/classification and discuss how they apply
to different alloy metals.
10. Summarize shielding gases used in GTAW and describe their characteristics and
effectiveness.
11. Examine related equipment maintenance requirements and apply correct tasks to ensure safe
and effective operation.
12. Demonstrate pre-weld procedures and apply correct welding parameter adjustment tasks.
13. Employ pre-weld metal preparation techniques to ensure weld quality.
14. Apply foundational skills to weld carbon steel, aluminum, and stainless-steel weld joints to
meet industry-based acceptance criteria.
15. Label common types of weld discontinuities and examine their root cause and prevention
measures.
Topics and Scope
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I. Occupational Orientation
II. Introduction to GTAW
III. Welding Safety
IV. Terms and definitions
V. Weld Joints and weld types
VI. GTAW power supplies
VII. GTAW equipment
VIII. Electrodes / filler materials
IX. GTAW equipment setup and operation
X. Equipment maintenance and repair
XI. Base metal and weld joint preparation
XII. Procedures and techniques for welding common metal alloys
XIII. Welding defects, discontinuities, and corrective action
All topics are covered in the lecture and lab portions of the course..
Assignments:
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Assigned projects should supplement the course content
Lecture-Related Assignments:
1. Weekly reading assignments, 10-15 pages per week.
2. Homework
3. Quizzes and Exams
Lab-Related Assignments:
1. Welding skills assignments
Methods of Evaluation/Basis of Grade.
Writing: Assessment tools that demonstrate writing skill and/or require students to select, organize and explain ideas in writing. | Writing 0 - 0% |
None | |
This is a degree applicable course but assessment tools based on writing are not included because skill demonstrations are more appropriate for this course. |
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Problem solving: Assessment tools, other than exams, that demonstrate competence in computational or non-computational problem solving skills. | Problem Solving 10 - 20% |
Homework problems | |
Skill Demonstrations: All skill-based and physical demonstrations used for assessment purposes including skill performance exams. | Skill Demonstrations 50 - 60% |
Welding skills assignments | |
Exams: All forms of formal testing, other than skill performance exams. | Exams 10 - 20% |
Quizzes and Exams | |
Other: Includes any assessment tools that do not logically fit into the above categories. | Other Category 0 - 10% |
Participation | |
Representative Textbooks and Materials:
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Modern Welding. 12th ed. Bowditch, William and Bowditch, Kevin and Bowditch, Mark. Goodheart Wilcox. 2020
Welding Principles and Applications. 8th ed. Jeffus, Larry. Cengage. 2017
Welding Skills. 5th ed. Moniz, B.J. American Technical Publishers. 2015 (classic)
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