Chabot College
Fall 2010
Course Outline for Welding Technology 67A
WELDING SKILLS LABORATORY
Catalog Description:
67A - Welding Skills Laboratory
(May be repeated three times)
2 units
Development and improvement of practical welding skills using SMAW, FCAW, MIG, GMAW, and
GTAW processes. Preparation for welding solidification in 1G, 2G 1F and 2F positions. Strongly
recommended: Welding Technology 64A. 6 hours laboratory.
[Typical contact hours: laboratory 105]
Prerequisite Skills:
1.
None
Expected Outcomes for Students:
2.
3.
Upon completion of the course, the student should be able to:
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6.
handle welding and shop equipment in a safe manner;
identify common metals, metal alloys and their properties;
demonstrate proper usage of welding power supply;
correctly identify and properly use electrodes, flux-core wires and welding consumables;
identify OSHA hazardous material and apply safety norms in shop environment;
perform sound welding tests in both flat and horizontal positions using GMAW, GTAW, SMAW
and FCAW, processes in accordance with AWS codes in 1G, 2G, 1F and 2F positions;
7. properly maintain the shop and welding equipment.
Course Content:
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Shop, welding and cutting equipment safety practices
Identify metals and metals alloy physical and mechanical properties
Demonstration and practice of weld-ability of similar and dissimilar metals and their alloys
Perform relevant shop and welding equipment maintenance
Welding fundamentals and techniques employed in performing sound welding tests in 1G,
2G, 1F, and 2F positions using GMAW, GTAW, SMAW and FCAW processes
6. Adhere to AWS codes and standards that apply for flat and horizontal welding positions
Methods of Presentation:
1. Demonstration of welding skills
2. Individual instruction
3. Collaborative peer group
Assignments and Methods of Evaluating Student Progress:
1. Typical Assignment
Properly set up and adjust the FCAW machine, select the appropriate settings (0.78 inch
diameter ER 232 wire), select two pieces of mild steel sheet (5/8 in. thick) and perform
beveled butt weld, waved beats welds in the horizontal position.
Chabot College
Course Outline for Welding Technology 67A, Page 2
Fall 2010
a. Obtain 5/8 in. plate, oxyacetylene cut and bevel along the longest side at 30 degree angle
two 7 in. by 4 in. plates
b. Set up the wire feeder with ER232 Lincoln flux core wire (0.78 diameter) at the 150
inch/minute speed, and a constant voltage of 20.5 volts
c. Set the power supply on DC straight polarity
d. Set up and tack plates at each end
e. Make welds using a trailing angle of 70 degree in flat 1G position
f. Chip the slag from the weld brush and inspect for each pass
g. Submit the welds for instructor inspection for each welding pass
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 finding laboratory written reports
d. Final examination: performance test
Textbook(s) (Typical):
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:
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9.
Welding protective clothing
Welding gloves
Welding goggles
Welding helmet
Welding safety glasses
Welding jacket
Welding boots
Pure tungsten 3/32 rod
2% thorium oxide tungsten 3/32 rod
DR
Weld 67A course outline
Revised: Sept2009