Chabot College Fall 2010
Course Outline for Welding Technology 65A
BEGINNING TIG, MIG, AND BLUEPRINT READING
Catalog Description:
65A – Beginning TIG, MIG, and Blueprint Reading
(May be repeated three times)
3 units
Theory and practical application of ferrous and non-ferrous metals and their alloys using GTAW (Gas
Tungsten Arc Welding) and GMAW (Gas Metal Arc Welding) processes, oxyacetylene brazing, flame and plasma cutting skill development, AWS (American Welding Society) codes and standards, supplies selection, introduction to blueprint reading, proper and safe use of welding equipment and hazardous material regulations. Strongly recommended: Welding Technology 70. 1 hour lecture, 6 hours laboratory.
[Typical contact hours: lecture 17.5, laboratory 105]
Prerequisite Skills:
None
Expected Outcomes for Students:
Upon completion of the course, the student should be able to:
1. properly identify GMAW and GTAW welding equipment and describe their applications;
2. handle welding and shop equipment in a safe manner;
3. identify common metals, metal alloys and their properties;
4. demonstrate proper usage of welding power supply;
5. correctly identify and properly use electrodes, flux-core wires and welding consumables;
6. perform mathematical calculations appropriate to the welding industry;
7. read and apply welding symbols, blueprints and shop sketches;
8. identify hazardous materials and apply safety regulatory norms in the shop environment;
9. produce sound welding performance tests using GMAW and GTAW processes in both flat and horizontal positions according to AWS codes;
10. properly maintain shop and welding equipment.
Course Content (Lecture):
1. Welding power supplies and their application
2. Metallurgical welding related transformation and their relevance to the welding industry
3. Welding techniques applied to perform GMAW and GTAW welds in 1G, 2G, 1F, and 2F position
4. The weld-ability of metals and their alloys
5. Welding related distortion and distortion control techniques applicable
6. Welding procedure qualifications in accordance with AWS
7. OSHA industrial safety requirements regulations
8. Estimating welding costs
9. Equipment and shop maintenance
10. Welding certification preparation
Course Content (Laboratory):
1. Welding power supplies selection and settings related to their application
2. Observation of the study of metallurgical welding related transformations in lab environment
3. Welding practice on plates and profiles applying GMAW and GTAW processes in 1G, 2G, 1F, and 2F position
4. Demonstration and practice of weld-ability of similar and dissimilar metals and their alloys

Chabot College
Course Outline for Welding Technology 65A, Page 2
Fall 2010
5. Performance of destructive and nondestructive tests using plasma and fuel cutting practice and shop related equipment. Study of the welding metallurgical modification of the weld bed and its HAZ (heat affected zone)
6. Indentify and reason related metallurgical and non metallurgical welding discontinuities and defects ascertaining proper control related techniques in order to satisfy AWS testing requirements
7. Identify and apply appropriate procedures for the elimination of hazardous materials according to the OSHA material safety data sheet.
8. Assessing the various layout and fitting designs on welding costs
9. Equipment and shop maintenance
10. Performance of the welding practice test according to the AWS codes
11. AWS welding performance test in processes in 1G, 2G, 1F, and 2F position
Methods of Presentation:
1. Lectures and discussions
2. Models, laboratory studies
3. Videos
4. Laboratory demonstrations
Assignments and Methods of Evaluating Student Progress:
1. Typical Assignment
Properly set up and adjust the GTAW machine, select the appropriate settings, two pieces of mild steel sheet (1/16 inch stainless steel) and perform an inside corner (T-joint), stringer beat weld in the horizontal position. a. Obtain two 1/16 in. plates (7 in. by 4 in. plates) b. Set up the power supply on DC straight polarity high frequency signal on start only c. Use the 2% 3/16 EWTh-2 red thorium tungsten rod d. Appropriately set up the GTAW machine using the respective machine chart for gas/gases, and material thickness and consumable wire size e. Set up and tack plates at each corner of the T-joint f. Make welds in the flat position g. Submit the welds for instructor inspection h. Practice until will produce consistently sound welds with both type of electrodes
2. Methods of Evaluating Student Progress a. Class participation b. Laboratory assignments and projects. c. Student laboratory written reports d. Homework assignments e. Quizzes f. Midterm examination g. Final examination
.

Chabot College
Course Outline for Welding Technology 65A, Page 3
Fall 2010
Textbook(s) (Typical):
Welding Principles and Application , (7th Edition) Larry Jeffus, 2008
Welding Lab Manual, Doug Snyder, 2004*
*Rationale: This book more completely covers the subject matter taught in the Welding
Technology program than any other textbook we have found.
Special Student Materials:
1. Welding/shop protective clothing
2. Welding gloves
3. Welding goggles
4. Welding helmet
5. Safety glasses
6. Welding jacket
7. Welding boots
8. Pure tungsten 3/32 rod
9. 2% thorium oxide tungsten 3/32 rod
DR
Weld 65A course outline
Revised: Sept2009