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Layouts and Fabrications
WLDG1317 – Layouts and Fabrications
Catalog Description: A fundamental course in layout and fabrication related to the
welding industry. Major emphasis on structural shapes and use in construction. Lecture
Hrs = 3, Lab Hrs = 0
Semester Credit Hours: 3
Lecture Hours per Week: 3
Lab Hours per Week: 0
Contact Hours per Semester: 64
State Approval Code: 4805080000
Course Subject/ Catalog Number : WLDG 1317
Course Title: Layouts and Fabrications
A student completing this class will have the basic knowledge of welding joints, symbols
Instructional Goals and Purposes:
The purpose of this course is to provide the learners with a basic knowledge of welding
joints, symbols and fabrication .
After completing this course, the student should understand the codes, standards and
cost of different types of welded joints.
Specific Course Objective:
Upon completion of this course, the student should be able to safely demonstrate and
explain the following:
Welding Joint Design, Welding Symbols, and Fabrication
I. Introduction (1ai 1aii, 1aiv, 1bi, 1bii, 1biv, 1bv, 1ci, 1cii. 1civ, 1cv)
II. Weld Joint Design (1ai, 1aii, 1aiii, 1aiv, 1bii, 1biv, 1bv, 1ci, 2ai, 2aii, 2bi, 2bii, 2ci, 2cii,
2ciii, 2di, 2diii)
a. joint type
b. edge preparation
c. joint dimensions
d. welding process
e. base metal
f. plate welding positions
g. pipe welding positions
h. metal thickness
i. code or standards requirements
j. welder skill
k. acceptable cost
III. Mechanical Drawings (1ai, 1aii, 1aiii, 1bi, 1bii, 1biii, 1ci, 2ai, 2bi, 2bii, 2bv, 2bvi, 2ci,
b. types of drawings
c. projection drawings
d. special views
IV. Welding symbols (1ai, 1aii, 1biv, 1ci)
V. Indicating type of welds (1ai, 1aii, 1aiii, 1bii, 1ci, 2ai, 2di, 2ei, 2eii, 2eiii)
VI. Weld Location (1ai, 1aii, 1aiv, 1av, 1bi, 1bii, 1biv, 1ci, 1cii, 1civ, 2ai, 2aiii, 2biv, 2ci,
VII. Location Significance of Arrow (1ai, 1aii, 1bi, 1biv, 1ci, 2ai, 2ci,)
VIII. Fillet Welds (1ai, 1aii, 1aiii, 2bii, 1biii, 1ci, 2ai, 2aiii, 2ei, 2eii, 2eiii)
IX. Plug Welds (1ai, 1aii, 1aiii, 2bii, 1biii, 1ci, 2ai, 2aiii, 2ei, 2eii, 2eiii)
X. Spot Welds (1ai, 1aii, 1aiii, 2bii, 1biii, 1ci, 2ai, 2aiii, 2ei, 2eii, 2eiii)
XI. Seam Welds (1ai, 1aii, 1aiii, 2bii, 1biii, 1ci, 2ai, 2aiii, 2ei, 2eii, 2eiii)
XII. Groove Welds (1ai, 1aii, 1aiii, 2bii, 1biii, 1ci, 2ai, 2aiii, 2ei, 2eii, 2eiii)
XIII. Backing (1ai, 1aii, 1aiii, 2bii, 1biii, 1ci, 2ai, 2aiii, 2ei, 2eii, 2eiii)
XIV. Backing (1ai, 1aii, 1aiii, 2bii, 1biii, 1ci, 2ai, 2aiii, 2ei, 2eii, 2eiii)
XV. Flanged Welds (1ai, 1aii, 1aiii, 2bii, 1biii, 1ci, 2ai, 2aiii, 2ei, 2eii, 2eiii)
XVI. Nondestructive Testing Symbols (1ai, 1aii, 1biv)
XVII. Fabrication (1ai, 1aii, 1aiii, 1bi, 1bii, 1biii, 1ci, 1civ, 2ai, 2ci, 2civ,)
b. shop math
3. Adding and subtracting
4. Reducing fractions
5. Rounding numbers
6. Converting fractions to decimals
7. Converting decimals to fractions
8. Conversion charts
XVIII. Layout (1ai, 1aii, 1aiii, 1av, 1bi, 1biv, 1ci, 1ciii, 2ai, 2aii, 2ci, 2cii,)
XIX. Material Shapes (1ai, 1aii, 1aiii, 1av, 1bi, 1biv, 1ci, 1ciii, 2ai, 2aii, 2ci, 2cii,)
XX. Assembly (1ai, 1aii, 1aiii, 1bi, 1biv, 2ci)
XXI. Assembly Tools (1ai, 1bi, 1ci, 2aiii)
XXII. Fitting (1ai, 1aii, 1aiii, 1bi, 1bii, 1biii, 1biv, 1ci, 2ai, 2aiii, 2dii)
XXIII. Tack Welding (1ai, 1aiii, 1bi, 1ci, 1cii, 1civ, 2ai, 2aiii, 2ci, 2diii)
XXIV. Welding (1ai, 1aiii, 1bi, 1ci, 1cii, 1civ, 2ai, 2aiii, 2ci, 2diii)
XXV. Finishing (1ai, 1aiii, 1bi, 1ci, 1cii, 1civ, 2ai, 2aiii, 2ci, 2diii)
Welding Codes, Standards, and Cost
I. Introduction (1ai, 1aii, 1aiv, 1bi, 1bii, 1biv, 1bv, 1ci, 1cii. 1civ, 1cv)
II. Codes, Standards, Procedures and Specifications (1ai, 1aii, 1biv, 1ci, 1cv, 2biv)
a. API Standard 1104
b. ASME Section IX
c. AWS D1.1
III. Welding Procedure Qualification (1ai, 1aii, 1aiii, 1biv, 1ci, 1cv)
a. welding procedure specification
b. qualifying the welding procedure specification
c. qualifying and certifying
IV. Welding Cost (1ai, 1aii, 1aiii, 1bi, 1biv, 1bv, 1ci, 1ciii, 1cv, 2aii, 2aiii, 2aiv, 2bii, 2biii,
2biv, 2bv, )
a. cost estimation
b. joint design
c. groove welds
d. fillet welds
e. weld metal cost
f. cost of electrodes, wires, gases and flux
g. deposition efficiency
h. deposition rate
i. deposition data tables
j. operating factor
k. factors for cost formulas
1. Labor and overhead
2. Cost of power
3. Calculating the cost per pound of deposited weld metal
4. Calculating the cost per foot of deposited weld metal
l. comparing weld metal costs
m. other useful formulas
Testing and Inspection of Welds
I. Introduction (1ai, 1aii, 1aiv, 1bi, 1bii, 1biv, 1bv, 1ci, 1cii. 1civ, 1cv)
II. Quality Control (1ai, 1aii, 1aiii, 1bi, 1biii, 1biv, 1ci, 2ai, 2ci, 2ei,
a. mechanical testing
b. nondestructive testing
III. Discontinuities and Defects (1ai, 1aii, 1aiii, 1aiv, 1bi, 1biii, 1bv, 1ci, 2ai, 2aiii, 2bi,
2bii, 2ci, 2dii, 2eiii)
c. inadequate joint penetration
d. incomplete fusion
e. arc strikes
f. overlap also called cold lap
h. crater cracks
i. under fill
j. plate-generated problems
m. lamellar tears
IV. Destructive testing (1ai, 1aii, 1aiii, 1aiv, 1bi, 1biii, 1bv, 1ci, 2ai, 2aiii, 2bi, 2bii, 2ci,
a. tensile testing
b. fatigue testing
c. shearing strength of welds
d. welded butt joints
e. nick-break test
f. guided-bend test
h. free-bend test
i. alternate bend
j. fillet weld break test
k. testing by etching
l. impact testing
V. Nondestructive testing (1ai, 1aii, 1aiii, 1aiv, 1bi, 1biii, 1bv, 1ci, 2ai, 2aiii, 2bi, 2bii,
2ci, 2dii, 2eiii)
a. visual inspection
b. penetrate inspection
c. magnetic particle inspection
d. radiographic inspection
e. ultrasonic inspection
f. leak checking
g. eddy current inspection
h. hardness testing
Your Grade will be determined from:
1. Assignments (10%)
2. Lab work (30%)
3. Quiz’s (10%)
4. Attendance (20%)
5. Exams (30%)
Textbook and Supplies Requirement:
1. Pen and Pencil
3. Welding Principles and Application, Larry Jeffus, 2008.
4. Welding hood
5. Welding gloves
6. Safety Glasses
8. Welding shirt
Secretary of Labor’s Commission on Achieving Necessary
1. BASIC SKILL COMPETENCIES
A. Basic Skills
i. Reading: Locate, understand and interpret written information in
prose and in documents such as manuals, graphs and schedules .
ii. Writing: Communicate thoughts, ideas, information and messages in
writing, and create documents such as letters, directions, manuals,
reports, graphs, and flow charts.
iii. Arithmetic & Mathematical Operations: Perform basic
computations and approach practical problems by choosing appropriately
from a variety of mathematical techniques .
iv. Listening: Receive, attend to, interpret, and respond to verbal
messages and other cues.
v. Speaking: Organize ideas and communicate orally.
B. Thinking Skills
i. Creative Thinking: Generate new ideas.
ii. Decision Making: Specify goals and constraints generate
alternatives, consider risks and evaluate and choose the best alternative.
iii. Problem Solving: Recognize problems and devise and implement
plan of action.
iv. Visualize ("Seeing Things in the Mind's Eye"): Organize and
process symbols, pictures, graphs, objects, and other information.
v. Knowing how to learn: use efficient learning techniques to acquire
and apply new knowledge and skills
vi. Reasoning: Discover a rule or principle underlying the relationship
between two or more objects and apply it when solving a problem .
C. Personal Qualities
i. Responsibility: Exert a high level of effort and persevere toward goal
ii. Self-Esteem: Believe in one's own self-worth and maintain a positive
view of oneself.
iii. Sociability: Demonstrate understanding, friendliness, adaptability,
empathy, and politeness in group settings .
iv. Self-Management: Assess oneself, set personal goals, monitor
progress, and exhibit self-control.
v. Integrity & Honesty: Choose ethical courses of action.
2. WORKPLACE COMPETENCIES
i. Time: Select goal-relevant activities, rank them, allocate time, and
prepare and follow schedules.
ii. Money: Use or prepare budgets, make forecasts, keep records, and
make adjustments to meet objectives.
iii. Material & Facilities: Acquire, store, allocate, and use materials or
iv. Human Resources: Assess skills and distribute work accordingly,
evaluate performance and provide feedback.
B. Interpersonal Skills:
i. Participate as Member of a Team: Contribute to group effort.
ii. Teach Others New Skills.
iii. Serve Clients/ Customers: Work to satisfy customers'
iv. Exercise Leadership: Communicate ideas to justify position,
persuade & convince others, responsibly challenge existing procedures &
v. Negotiate: Work toward agreements involving exchange of
resources, resolve divergent interests.
vi. Work with Diversity: Work well with men and women from diverse
i. Acquire and Evaluate Information.
ii. Organize and Maintain Information.
iii. Interpret and Communicate Information.
iv. Use computers to process information.
i. Understand Systems: Know how social, organizational and
technological systems work and operate effectively with them.
ii. Monitor & Correct Performance: Distinguish trends, predict impacts
on system operations, and diagnose deviations in systems' performance.
iii. Improve or Design Systems: Suggest modifications to existing
systems and develop new or alternative systems to improve performance.
i. Select Technology: Choose procedures, tools or equipment including
computers and related technologies.
ii. Apply Technologies to Task: Understand overall intent and proper
procedures for setup and operation of equipment.
iii Maintain and Troubleshoot Equipment: Prevent, identify, or solve
problems with equipment, including computers and other technologies.