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Ray Harkins, The Manufacturing Academy and Garry Pace

Welding symbols are the graphical tools, placed on engineering drawings and specifications, that product engineers and designers use to communicate the intent of their design to the people who are making and inspecting the products. Details like the type, shape, length, thickness, and location of the weld are all communicated through these welding symbols.

And like all symbols, without an understanding of how they work, they're meaningless. But in this course, "Understanding Welding Symbols", we show you how to read and interpret these symbols.

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Welding symbols are the graphical tools, placed on engineering drawings and specifications, that product engineers and designers use to communicate the intent of their design to the people who are making and inspecting the products. Details like the type, shape, length, thickness, and location of the weld are all communicated through these welding symbols.

And like all symbols, without an understanding of how they work, they're meaningless. But in this course, "Understanding Welding Symbols", we show you how to read and interpret these symbols.

Metallurgist and Licensed Professional Engineer, Garry Pace is the instructor for this course. Over the past 20+ years, Garry has taught thousands of welders, weld inspectors, quality engineers, quality technicians, and other manufacturing professionals the fundamentals of welding, along with its procedures and specifications.

In this course, you will learn:

  • An overview of the major welding processes like.. what they mean and why they're important

  • All the terminology and concepts needed to master welding symbols

  • How groove and fillet welds are specified and dimensioned

  • How plug, slot, and stud welds are specified and dimensioned

  • Supplementary information and symbols

  • An overview of nondestructive testing methods like ultrasonic, liquid penetrant, x-ray, and magnetic particle inspection

  • How required NDT methods are specified on blueprints

  • PLUS: Late 2024 updates that include overviews on:

    • Weld pass types

    • Weld penetration

    • Joint and edge preparation

    • Pre- and post-heat treating

We've included in this course far more than just the dry theory. We've included real-life examples and practical applications that can only be learned through years of hands-on experience.

What have past students said about "Understanding Welding Symbols"?

"Very comprehensive but digestible for a beginner - the repetition of key concepts throughout helped drill them down properly." - Thomas M.

"I really enjoyed this course, it is both funny and informative. Great job. " - Filip M.

"Good overview and reference course on welding symbols." - Rober U.

"I have learned more and got many new ideas to apply welding in mfg, drawings. Thanks." - Ramesh M.

So if you're looking to take your welding and metal working skills to the next level by incorporating the more technical aspects of your profession, then this is the class for you.

Sign up today to advance your skillset and advance career in manufacturing.

Enroll now

What's inside

Learning objectives

  • An overview of the major welding processes including fcaw, saw, smaw, gtaw and gmaw
  • A detailed explanation of joint types and terminology
  • Parts of a welding symbol: reference lines, arrows and tails
  • Groove weld terminology including groove shapes and their associated symbols
  • A deep dive into fillet welds -- their applications and symbols
  • An overview of plug, slot and stud welds
  • Nondestructive testing types and how to depict those tests on an engineering drawing
  • Supplementary information and symbols
  • And much more!!

Syllabus

Introduction and Overview of Welding Processes
Introduction to the Course
Overview of Shielded Metal Arc Welding (SMAW)
Overview of Welding Processes - SMAW
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Traffic lights

Read about what's good
what should give you pause
and possible dealbreakers
Taught by a licensed professional engineer with 20+ years of experience, which suggests practical insights and real-world relevance
Covers nondestructive testing methods, which are essential for quality control and assurance in welding and manufacturing
Includes late 2024 updates on weld pass types, weld penetration, joint and edge preparation, and pre- and post-heat treating, reflecting current industry practices
Provides an overview of major welding processes like SMAW, GMAW, FCAW, SAW, and GTAW, which builds a strong foundation for beginners
Requires learners to understand engineering drawings and specifications, which may necessitate prior knowledge or coursework in drafting or engineering fundamentals
Focuses on interpreting welding symbols, which are specific to the field and may not be transferable to other areas of manufacturing or engineering

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Reviews summary

Understanding welding symbols for professionals

According to learners, this course offers a positive and comprehensive look at welding symbols. Students find the explanations to be clear and digestible, making the complex topic approachable even for beginners. Many reviewers highlight the course's practical value, noting how they can immediately apply the knowledge gained to manufacturing, engineering drawings, and inspection tasks. The instructor, Garry Pace, is frequently praised for being both informative and engaging, drawing upon real-world experience. The course serves as a solid foundation for newcomers and a valuable reference for more experienced professionals, covering major processes, symbols, and NDT methods effectively.

Valuable for beginners and experienced pros.
"digestible for a beginner..."
"...got many new ideas to apply welding in mfg, drawings."
"Good as a first course on the topic, and a solid refresher for experienced hands."
"Whether new or experienced, you will gain valuable insight."
Instructor is knowledgeable and engaging.
"I really enjoyed this course, it is both funny and informative. Great job."
"Garry Pace is an excellent teacher with obvious real-world experience."
"The instructor makes the potentially dry topic interesting."
"His explanations are clear and his delivery is engaging."
Covers key symbols and related topics.
"Good overview and reference course on welding symbols."
"Covers major processes, symbols, NDT, and supplementary information thoroughly."
"A great resource covering all the essential aspects of welding symbols."
"Provides a complete introduction to understanding welding notation."
Explanations are easy to follow.
"Very comprehensive but digestible for a beginner - the repetition of key concepts throughout helped drill them down properly."
"The instructor explains concepts clearly, making them easy to understand."
"Everything was explained in a clear and concise manner."
"The course content is broken down into easily understandable modules."
Useful for real-world work scenarios.
"I have learned more and got many new ideas to apply welding in mfg, drawings. Thanks."
"Immediately useful for reading blueprints and technical drawings at work."
"Provides practical knowledge directly applicable to my job in quality control."
"Helped me better understand symbols used daily in manufacturing."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Understanding Welding Symbols with these activities:
Review Basic Welding Principles
Reinforce your understanding of fundamental welding concepts to better grasp the nuances of welding symbols.
Browse courses on Arc Welding
Show steps
  • Review different welding processes.
  • Study joint types and weld types.
  • Familiarize yourself with welding terminology.
Review 'Welding Principles and Applications'
Gain a broader understanding of welding processes and applications to contextualize the use of welding symbols.
Show steps
  • Read chapters on relevant welding processes.
  • Study sections on joint design and preparation.
  • Review the metallurgy of welding.
Practice Identifying Welding Symbols
Reinforce your ability to quickly and accurately identify welding symbols through repetitive exercises.
Show steps
  • Find online resources with welding symbol quizzes.
  • Create flashcards with welding symbols and their meanings.
  • Practice interpreting symbols on sample drawings.
Four other activities
Expand to see all activities and additional details
Show all seven activities
Create a Welding Symbol Cheat Sheet
Solidify your understanding of welding symbols by creating a comprehensive and easily accessible reference guide.
Show steps
  • Categorize welding symbols by type (fillet, groove, etc.).
  • Include clear diagrams and explanations for each symbol.
  • Organize the cheat sheet for quick reference.
Study 'AWS A2.4: Standard Symbols for Welding, Brazing, and Nondestructive Examination'
Deepen your understanding of welding symbols by studying the official AWS standard.
Show steps
  • Review the sections on welding symbols.
  • Study the examples of symbol usage.
  • Pay attention to the rules for symbol placement.
Interpret Welding Symbols on Real Blueprints
Apply your knowledge of welding symbols by interpreting them on actual engineering drawings.
Show steps
  • Obtain blueprints from a local fabrication shop.
  • Identify and interpret all welding symbols on the drawings.
  • Verify your interpretations with a welding professional.
Tutor other students on welding symbols
Reinforce your understanding of welding symbols by teaching the concepts to others.
Show steps
  • Offer tutoring sessions to classmates.
  • Answer questions in online forums.
  • Create practice quizzes for others to take.

Career center

Learners who complete Understanding Welding Symbols will develop knowledge and skills that may be useful to these careers:
Welder
Welders fuse metal parts together using various welding techniques. While hands-on skills are paramount, understanding welding symbols is crucial for interpreting blueprints and executing welds according to design specifications. The "Understanding Welding Symbols" course ensures that welders can accurately interpret engineering drawings. The course's detailed explanation into joint types and terminology will also be useful. The course also covers the welding symbol's key parts, including reference lines, arrows and tails.
Welding Inspector
A welding inspector ensures that welds meet specific codes, standards, and quality requirements. Welding inspectors visually examine welds, use nondestructive testing methods, and interpret engineering drawings to verify compliance. The "Understanding Welding Symbols" course provides a solid foundation in reading and interpreting the welding symbols found on these drawings. The course's overview of nondestructive testing methods, like ultrasonic, liquid penetrant, x-ray, and magnetic particle inspection, provides critical insights. A prospective welding inspector benefits from the course's deep dives into fillet and groove welds.
Quality Control Technician
A quality control technician monitors and tests products to ensure they meet established quality standards. Quality control technicians use a variety of tools and techniques to identify defects and ensure that products are manufactured according to specifications. For those working with welded components, understanding welding symbols is essential. The "Understanding Welding Symbols" course offers an overview of welding processes, terminology, and concepts needed to master welding symbols. This knowledge directly contributes to a quality control technician's ability to assess weld quality and identify potential issues. This course reviews fillet welds, supplementary symbols, and nondestructive evaluation symbols.
Manufacturing Engineer
Manufacturing engineers design, develop, and optimize manufacturing processes. They work to improve efficiency, reduce costs, and ensure product quality. When dealing with welded assemblies, manufacturing engineers must understand welding symbols to properly specify welding requirements on engineering drawings. The "Understanding Welding Symbols" course helps build their understanding of groove welds, plug welds, slot welds and stud welds. Furthermore, the course's coverage of supplementary information and symbols equips manufacturing engineers with the knowledge needed to create clear and comprehensive manufacturing documentation. The course even includes late updates on weld penetration, joint and edge preparations, and pre- and post-heat treating.
CAD Drafter
Computer aided design drafters create technical drawings and plans based on specifications provided by engineers and designers. In manufacturing, these drawings often include welding details. A CAD drafter must accurately represent welding symbols on the drawings to ensure proper fabrication. The "Understanding Welding Symbols" course offers a comprehensive guide to interpreting and applying these symbols. This course's deep dive into fillet welds, groove welds, and plug, slot, and stud welds, helps the CAD Drafter. Furthermore, the course’s exploration of nondestructive evaluation symbols is also helpful.
Fabricator
Fabricators construct metal products by cutting, bending, and assembling various components. They often work from engineering drawings that include welding details. A fabricator with a strong understanding of welding symbols can accurately interpret these drawings and ensure that the final product meets design requirements. The "Understanding Welding Symbols" course presents an overview of welding processes, including shielded metal arc welding, gas metal arc welding, flux core arc welding, submerged arc welding, and gas tungsten arc welding. This course's bonus lecture is also helpful.
Mechanical Engineer
Mechanical engineers design and develop mechanical systems and products. This often involves specifying welding requirements for structural components. A mechanical engineer must have a solid understanding of welding symbols to communicate design intent effectively. The "Understanding Welding Symbols" course provides the needed knowledge in areas such as groove weld terminology, fillet weld applications and symbols, and nondestructive testing types. A mechanical engineer can also expect discussions on joint and weld types, and welding processes.
Structural Engineer
Structural engineers design and analyze structures, ensuring their stability and safety. Welding is a common joining method in structural applications, so structural engineers specify welding requirements on design drawings. The "Understanding Welding Symbols" course helps structural engineers accurately communicate welding specifications. This course may be useful when covering supplementary information and symbols, and nondestructive evaluation symbols. The course's modules on weld penetration, joint and edge preparations, and pre- and post-heating may prove to be useful also.
Project Engineer
Project engineers oversee engineering projects from conception to completion. When projects involve welding, a project engineer needs to understand welding symbols to ensure that the fabrication and construction processes align with design specifications. The "Understanding Welding Symbols" course may be useful because it provides a foundation in welding terminology, weld types, and nondestructive testing methods. The course's supplementary information and symbols section may also be useful.
Estimator
Estimators calculate the cost of materials, labor, and equipment needed for construction or manufacturing projects. For projects involving welding, estimators must accurately assess the amount of welding required and its associated costs. An estimator who has completed the "Understanding Welding Symbols" course may be able to better understand project specifications. The course's emphasis on joint types and welding symbols may prove particularly useful.
Civil Engineer
Civil engineers design, construct, supervise, and maintain infrastructure projects and systems. When these projects involve welding, understanding welding symbols helps civil engineers interpret plans. The "Understanding Welding Symbols" course may be useful by providing a foundation in welding terminology, weld types, and nondestructive testing methods. Because the course also covers an overview of welding processes like submerged arc welding, civil engineers may find additional value.
Naval Architect
Naval architects design and oversee the construction and repair of marine vessels and offshore structures. These structures often involve extensive welding, requiring naval architects to understand welding symbols for design and inspection purposes. An naval architect who has completed the "Understanding Welding Symbols" course may be able to better understand project specifications. The course's modules on supplementary symbols, and nondestructive evaluation symbols, may prove particularly useful.
Automotive Technician
Automotive technicians inspect, maintain, and repair vehicles, often including welding for exhaust systems, frame repairs, or custom modifications. Understanding welding symbols may assist in interpreting repair manuals and fabrication plans. The "Understanding Welding Symbols" course may be helpful to understanding welding terminology and weld types. The course may be useful to automotive technicians who wish to grow their knowledge of groove welds and fillet welds.
Aerospace Engineer
Aerospace engineers design, develop, and test aircraft and spacecraft. Welding is used in the construction of aircraft structures and engine components, so aerospace engineers need to understand welding symbols to interpret design drawings. The "Understanding Welding Symbols" course may be useful in providing background information on welding processes, joint types, and weld symbols. In particular, aerospace engineers may find the course helpful in better understanding nondestructive evaluation symbols.
Robotics Technician
Robotics technicians install, maintain, and repair robotic systems used in manufacturing and other industries. Welding may be involved in the fabrication of robotic components or in the integration of robots into welding processes. The "Understanding Welding Symbols" course may be useful in providing a foundational knowledge of welding processes, terminology, and symbols. A robotics technician who wishes to expand their background knowledge may find this course helpful with its overview of shielded metal arc welding, gas metal arc welding, flux core arc welding, submerged arc welding, and gas tungsten arc welding.

Reading list

We've selected two books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Understanding Welding Symbols.
This is the definitive standard for welding symbols. It provides detailed explanations and examples of all welding symbols. It is an essential reference for anyone working with welding drawings. adds more depth to the course by providing the official standards.
Provides a comprehensive overview of welding processes, metallurgy, and applications. It serves as a valuable reference for understanding the practical aspects of welding. It is helpful for understanding the context in which welding symbols are used. This book is commonly used as a textbook in welding programs.

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