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Gas Tungsten Arc Welding
GAS TUNG ARC W
CLASS CODE: WELD 117 CREDITS:  3
DIVISION: PHYSICAL SCIENCE & ENGINEERING
DEPARTMENT: MECHANICAL ENGINEERING & TECHNOLOGY
GENERAL EDUCATION: This course does not fulfill a General Education requirement.

DESCRIPTION: Gas Tungsten Arc Welding of carbon steel, stainless steel, aluminum, and other alloys (titanium, nickel alloys, magnesium, and copper) used in the welding industry. Includes the study of their physical and mechanical properties and chemical composition and weldability. Welding will be done in all positions.
TAUGHT: Fall
CONTENT AND TOPICS: Processes used will include TB, SMAW, GTAW, GMAW, and PAC. We will study the physical, mechanical, and chemical properties and composition of the materials to be repaired.
GOALS AND OBJECTIVES: The student will:
1. Perform safety inspection of equipment and accessories.
2. Make minor external repairs to equipment and accessories.
3. Set up for gas tungsten arc welding operations on plain carbon steel, aluminum, and stainless steel.
4. Operate gas tungsten arc welding equipment.
5. Make fillet welds, all positions, on plain carbon steel.
6. Make groove welds, all positions, on plain carbon steel.
7. Make 1F-2F welds on aluminum.
8. Make 1G welds on aluminum.
9. Make 1F-#-F welds on stainless steel.
10. Make 1G-2G welds on stainless steel.
REQUIREMENTS: A. Text: "Gas Tungsten Arc Welding Handbook", William H. Minnick, Goodheart-Wilcox

B. Materials: Notebook, coveralls or leathers, safety glasses, gloves, tungsten, stainless steel wire brush, 3-ring binder, calculator, protractor, ruler and various fixtures (to be made in class).

C. 1. Written: Tests and quizzes will be given covering reading, lecture/discussion, and lab assignments, and will consist of problem-solving, essay, and multiple choice questions.
2. Skills Tests: Skills tests will consist of problem solving exercises taken from daily lab assignments.

D. Attendance: Students are responsible for class attendance. No absences, whether approved by the college for participation in college-sponsored activities or necessitated by sickness or other personal emergencies are "excuses" in the sense that the student is relieved from work assigned or carried out by the class during the absence. To ensure continuity, students must make up work missed. In most cases, repeated absences will result in a lower grade or a failure.

E. Homework: On the average, students should plan to devote at least four hours of homework time per week to this course.

F. Assessments:
1. AWS EG2.0-95 Fig-6 GTAW Workmanship Qualification Test
2. AWS EG2.0-95 Learning Objectives Unit 4
3. AWS EG2.0-95 GTAW Processes and Knowledge
4. Fig-1 Performance Carbon Steel, Stainless Steel, Aluminum
5. Competency Profile 70-6300-C #12 Items 1-23 #13 Items 1-9
PREREQUISITES: Weld 105, concurrent enrollment, or permission from instructor
OTHER: Students must wear safety glasses at all times while in lab sessions.
EFFECTIVE DATE: August 2003