Welding Technology
This course provides students with the opportunity for in-depth exploration in the field of
welding. The primary focus is the various fusion systems and the productive utilization of
those systems. Topics of study include safety, identification of metals, weld fabrication,
oxy-fuel gas welding, oxy-fuel gas cutting, shielded metal arc welding, gas metal arc
welding, gas tungsten arc welding, plasma cutting, weld inspection and testing, and
automated welding systems. Experiences related to the design, theory and utilization of
welding systems are provided for students. A combination of mathematics and science
skills will be incorporated into lab/class activities. Work-based learning strategies
appropriate for this course are field trips, service learning, job shadowing and internships.
This course and Technology Student Association technical and leadership activities
enhance skills essential for students interested in technical and engineering career fields.
Prerequisite: None
Table of Contents
Louisiana Technology Education Related Content Standards
2
Content Guideline
Introduction to Welding Technology
Career Skills
Technology Student Association (TSA)
General Safety
Identification of Materials
Oxygen Fuel Gas Welding
Oxygen Fuel Gas Cutting
Shielded Metal Arc Welding
Gas Metal Arc Welding
Gas Tungsten Arc Welding
Resistance Welding
Special Processes
Welding Symbols
3
3
3
3
4
4
4
4
5
5
6
6
6
Resources
7
Internet Sites
7
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Welding Technology
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Welding Symbols
Special Processes
Resistance Welding
Gas Tungsten Arc
Welding
Gas Metal Arc Welding
Shielded Metal Arc
Welding
Oxygen Fuel Gas Cutting
Oxygen Fuel Gas
Welding
Identification of Metals
General Safety
Technology Student
Association
* All benchmarks are not marked for all Technology Education courses.
Career Skills
Louisiana
Technology Education
Related Content Standards
Content Guideline
Introduction to Welding
Welding Technology
Standard: 12. Develop an understanding of traditional concepts in welding and demonstrate proficiency in fusion process, components,
weld testing and inspection, and automated welding systems.
A. Analyze basic safety skills associated with the welding environment.
B. Develop fundamental skills in the selection and operations of OFC (oxygen,
fuel-gas, cutting) processes, systems and equipment.
C. Develop an understanding of the various OFC processes, purpose and
functions, and operation of OFC equipment.
D. Describe the components of a SMAW (shielded metal arc welding) system
and explain the components in terms of their function.
E. Identify equipment, conditions, consumables, and the appropriate settings to
be used in the GTAW (gas tungsten arc welding) process.
F. Be able to discuss the components utilized with GMAW (gas metal arc
welding) process.
G. Be able to discuss metal inert gas welding activities such as arc spot
welding, pulsed spray welding, and electro-gas welding.
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Welding Technology
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Welding Technology
Content Guideline
(The student will be able to. . .)
Unit One
Introduction to Welding Technology
1. Develop an interest in the application of welding technology in society.
2. Consider the transformation of welding from the forge welding process through full
fusion welding and cutting processes.
3. Develop and display responsible behavioral attitudes, which are required in industrial
and educational environments.
4. Identify specific tools, equipment, and usage.
5. Demonstrate a safe working knowledge of lab materials and processes prior to lab
activity by passing a general safety test.
Unit Two
Career Skills
1. Explain how Technology Education and Welding Technology provide a foundation
for students to explore a multitude of career paths.
2. Explain work ethics and employer expectations in the welding industry.
3. Develop a resume.
4. Complete a sample job application.
5. Explain the importance of the job interview as well as interview techniques.
Unit Three
Technology Student Association (TSA)
1. Develop interest and enthusiasm for learning about the technical world in which we
live and work.
2. Demonstrate abilities developed through TSA activities.
3. Demonstrate professionalism and high standards of workmanship.
4. Participate in a TSA competitive event.
Unit Four
General Safety
1.
2.
3.
4.
Explain and apply general lab safety rules.
Explain and apply the safety rules for personal safety.
Explain and apply the safety rules for the proper use of tools and equipment.
Develop a safety poster.
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Unit Five
Identification of Materials
1. Appraise the important properties of metals.
2. Choose an appropriate metal for specific project application by determining the
physical, chemical and mechanical properties of metals used in welding.
3. Prepare metal and metal weld joints to prevent excessive distortion from expansion
and contraction during welding processes.
4. Explain the difference in the various heat-treating processes used in industrial
applications.
5. Convert U.S. conventional to SI metric and vice versa during measuring exercises.
Unit Six
Oxygen Fuel Gas Welding (OFW)
1. Identify by name and function the equipment utilized in the oxy fuel welding (OFW)
process.
2. Assemble an OFW system as a single tank set unit and as a manifold system.
3. Set OFW regulators safely and accurately to given PSI settings.
4. Perform torch ignition, mixing oxygen/gas to a neutral flame and complete torch
shutdown, lines bleed, zero gauges, and valves shut (closed).
5. Practice OFW on mild steel coupons for skill testing purposes.
Unit Seven
Oxygen Fuel Gas Cutting (OFC)
1. Identify by name and function the equipment utilized in the oxy-fuel cutting (OFC)
process.
2. Assemble an OFC system as a single tank set unit and as a manifold system.
3. Set OFC regulators safely and accurately to given PSI settings.
4. Perform torch ignition, mixing oxygen/gas to a neutral flame and complete torch
shutdown, lines bleed, zero gauges, and valves shut (closed).
5. Practice OFC on mild steel coupons for skill testing purposes.
Unit Eight
Shielded Metal Arc Welding (SMAW)
1. Develop an understanding of the electric arc welding process.
2. Identify the components of a SMAW system (welding outfit) and explain the
components in terms of their function.
3. Determine if all needed tools, supplies and equipment are present in the welding
station.
4. Adjust the amperage and polarity settings to accommodate the application at hand.
5. Compare and contrast welding electrode use by referring to the AWS electrode
identification system.
6. Determine if there are alloying elements added to the electrode.
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7. Weld using the SMAW process on a given weld coupon for skill testing purposes.
8. Weld using the SMAW process on five basic weld joints for skill testing of joint
fabrication, including the following joints: butt, lap, corner (full open and regular),
tee and edge.
9. Assess weld quality on an end-to-end, open root butt weld with the application of
destructive testing of tensile, guided bend, or v-notch and pressure.
10. Weld using the SMAW process on pipe-to-pipe and pipe-to-plate fabrication.
Unit Nine
Gas Metal Arc Welding (GMAW)
1. Explain the GMAW process using a continuous consumable electrode and
shielding gas or gas mixture.
2. Identify by name and function the equipment utilized in the Gas Metal Arc
Welding process.
3. Compare and contrast Flux Cored Arc Welding (FCAW) with Gas Metal Arc
Welding (GMAW).
4. Indicate the difference in GMAW and Metal Inert Gas (MIG) welding.
5. Review the advantages and disadvantages of GMAW and FCAW.
6. Explain the difference between Gas Metal Arc Spot Welding and Electric
Resistance Spot Welding.
7. Weld using one of three basic types of metal transfer: short-circuiting transfer,
globular transfer, or spray transfer.
8. Examine the differences in metal transfer processes.
9. Utilize technical charts to determine AWS electrode classification, metal
thickness, electrode diameter, weld position, shielding gas flow rate, wire feed
speed, and arc voltage.
Unit Ten
Gas Tungsten Arc Welding (GTAW)
1. Explain the GTAW process using a non-consumable tungsten electrode and shielding
gas (inert) or gas mixture.
2. Recognize that GTAW is referred to as (TIG) Tungsten Inert Gas welding in
industrial applications, while some refer to the GTAW process as Heliarc Welding.
3. Identify by name and function the equipment utilized in the Gas Tungsten Arc
Welding process.
4. Choose the appropriate polarity needed for the specific application to achieve
maximum penetration in the weld.
5. Weld using one of three different polarity types: (DCEN) Direct Current Electrode
Negative, (DCEP) Direct Current Electrode Positive, or (AC) Alternating Current.
6. Examine the differences in polarity changes on weld penetration.
7. Utilize technical charts to determine AWS electrode classification, metal thickness,
electrode diameter, filler rod diameter, weld position, shielding gas flow rate, and
amperage setting.
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Unit Eleven
Resistance Welding
1. Explain the principle of electrical resistance and how it is used in resistance welding.
2. Recognize the properties of a material suitable for use as an electrode in resistance
welding.
3. Inspect the resistance spot welding machine for safe operation.
4. Set up and adjust the spot welding machine for a specific application.
5. Weld thin gauge metal lap joints with proper penetration and without burn through.
6. Determine how to test for a good spot weld and identify the signs that indicate a weld
is of the desired quality needed for a specific job application.
Unit Twelve
Special Processes
1. Recognize the advantages of special welding and cutting processes that are used in
industry.
2. Examine the electro-gas welding process unique ability to weld on extremely thick
metal in industrial applications.
3. Identify several special welding processes used in industry for unusual materials or
positions.
4. Cut thin gauge metal using a plasma arc cutting torch set up with dryer/filter and air
compressor.
5. Illustrate the advantages of using robotic welding equipment in manufacturing.
6. Identify the main parts of a robot and the components of a robotic welding station.
7. Describe the use of a teach pendant in programming a robot to perform its designated
tasks.
8. Give a description of an oxygen fuel gas track-cutting torch.
9. Tell what an air carbon arc cutting process involves and how it can be used in
industrial welding applications.
Unit Thirteen
Welding Symbols
1. Demonstrate the method for making a mechanical drawing of a three-dimensional
object using the orthographic projection process.
2. Identify the basic types of welds indicated on the AWS welding symbol.
3. Locate information on the weld symbol to determine the size of the root opening, the
groove angle, and the desired size, contour, and finish of the weld.
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Resources
Althouse, A. D., and Bowditch, K. E., and Bowditch, W. A., and Turnquist,
C. H. (2000). Modern Welding (9th ed). Tinley Park, Illinois: The GoodheartWillcox Company, Inc.
Bowditch, K. E., and W. A. (1997). Welding Technology Fundamentals (2nd ed).
Tinley Park, Illinois: The Goodheart-Willcox Company, Inc.
Jeffus, L. F. (1999). Welding: Principles and Applications (4th ed). Albany,
New York: Delmar, Thomson Learning, Inc.
Ruck, J. A. (1999). Welding Projects. Tinley Park, Illinois: The Goodheart-Willcox
Company, Inc.
Internet Sites
Welding Periodicals
www.thefabricator.com (2003). Practical Welding Today.
www.thefabricator.com (2003). The Fabricator.
Professional Associations
www.fmametalfab.org (2003). Fabricators & Manufactuers Association, International..
Product Information
www.millerwelds.com (2003). Miller. The Power of Blue.
www.lincolnelectric.com (2003). Lincoln Electric Products.
Technology Associations
www.iteawww.org (2003). International Technology Association (ITA).
www.ltsa.org (2003). Louisiana Technology Student Association (LTSA).
www.tsa.web.org (2003). Technology Student Association (TSA).
Career Training
www.techdirections.com (2003). Techdirections. Your online companion to ideas,
information, and resources in technology and career education.
CERTIFICATION AND STANDARDS
AWS-American Welding Society
550 NW Lejeune Road
Miami, Florida 33126
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