Chabot College
Fall 2010
Course Outline for Welding Technology 63
WELDING LAYOUT AND FITTING
Catalog Description:
63 - Welding Layout and Fitting
(May be repeated three times)
2 units
Theoretical and practical applications of welding blueprints on welded assemblies and subassemblies.
Welding power source identification and classification, welding processes identification and selection,
assessment of welding joint discontinuities and defects identified by the AWS standards and codes,
techniques of stress and distortion control such as proper use of jigs, fixtures and holding devices, the
use of welding sequences techniques to control welding distortion and the implementation of the
correct methods of straightening and dimension restoration of finished products. Laboratory includes
the use of the following welding processes: SMAW, GMAW, GTAW, and FCAW and plasma and fuel
cutting practice. Strongly recommended: Welding Technology 64A, Welding Technology 65A and
Industrial Technology 74. 1 hour lecture, 3 hours laboratory.
[Typical contact hours: lecture 17.5, laboratory 52.5]
Prerequisite Skills:
None
Expected Outcomes for Students:
Upon completion of the course, the student should be able to:
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identify and properly use power sources and welding processes
read and apply welding blueprints
prepare welding joints and perform material layout
apply AWS codes and standards
set up components for welding in the proper sequences
select, understand, and properly use welding jigs, fixtures, and holding devices
perform sound welding tests in both flat and horizontal positions using SMAW, GTAW,
GMAW and FCAW processes in accordance to current AWS codes
8. control welding distortion and the implementation of the correct methods of straightening and
dimension restoring of finished products
Course Content (Lecture):
1. Welding blueprints, symbols and layout techniques
2. Fundamentals of distortion and dimension control through the use of jigs, fixture, and holding
devices
3. Welding metallurgy of the weld bed (expressed through its physical and mechanical
properties)
4. The weld-ability of metals and their alloys
5. Welding related distortion and distortion control techniques
6. Welding procedure qualifications in accordance with AWS
7. Estimating welding costs
8. Equipment and shop maintenance
Chabot College
Course Outline for Welding Technology 63, page 2
Fall 2010
Course Content (Laboratory):
1. Apply welding blueprints, symbols and layout techniques on welded assemblies and
subassemblies
2. Application of jigs, fixture, and holding devices to control distortion and dimension
modifications of welded subassemblies
3. Welding metallurgical modification of a weld bed as a result of application of holding control
devices
4. Welding application on similar and dissimilar metals and their alloys
5. Practice and identification of related distortion control techniques in the lab environment
6. Welding practical test qualifications in accordance with AWS
7. Assessing the various layout and fitting designs on welding costs
8. Equipment and shop maintenance
Methods of Presentation:
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Lectures and discussions
Models, laboratory studies
Blueprints readings
Videos
Lab demonstrations
Assignments and Methods of Evaluating Student Progress:
1. Typical Assignments
Perform the following tasks while using the GMAW process:
a. Obtain 1 in. plate and oxyacetylene cut and bevel along the longest side at 30* angle two
7 in. by 4 in. plates
b. Obtain 232 tubular flux core wire
c. Set the power supply on DC straight polarity (with 20.5 volts, 150 inch/minute wire speed)
d. Set up and tack plates at each end tack plates in the vertical position (make sure that it is
connected to the work connection)
e. Perform a root pass followed by a hot pass
f. Chip the slag from the weld brush and inspect
g. Perform the rest of the passes as many as necessary
h. Chip the slag from the weld brush and inspect
i. Submit the welds for instructor inspection
j. Practice until will produce consistently sound welds
k. Cut two 1 &1/2 in. testing specimens across the practiced welds and perform two bending
tests, one face up and the second face down
l. Inspect and discuss the results with your instructor
2. Methods of Evaluating Student Progress
a. Class participation
b. Performance of laboratory tasks, assignments, and projects
c. Homework assignments
d. Student projects and laboratory written reports
e. Quizzes
f. Midterm examination
g. Final examination
Chabot College
Course Outline for Welding Technology 63, page 3
Fall 2010
Textbook(s) (Typical):
The Procedure Handbook of Arc Welding, James F Lincoln Arc Welding Foundation, 2008.
Special Student Materials:
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9.
Welding and shop protective clothing
Welding gloves
Welding goggles
Welding helmet
Safety glasses
Welding jacket
Welding boots
Pure tungsten 3/32 rod
2% thorium oxide tungsten 3/32 rod
DR
Weld63 course outline
Revised: Sept2009