EL515_EL2024_04 - Principles of Welding has been added to your cart.

Principles of Welding

Understand introductory principles of welding technology, process of welding and how it affects welded materials and structures.

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Get 5 seats or more for the same Guided Study course and save 25%.  (This cannot be combined with any other offer).

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  • Jul 08-Aug 19th, 2024


  • Aug 26-Oct 07th, 2024


  • Oct 21-Dec 02nd, 2024



Extended Enrollment Available

Enrollment in Guided Study courses via the shopping cart automatically closes the day before each session begins. If you wish to enroll in a session in progress, please call ASME Customer Care:

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Outside of North America: (973) 882-1170

Please note: When choosing extended enrollment, keep in mind that all sessions end on the originally published date.

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This course is designed to help you intuitively understand the factors involved in the safe, successful, and economical design and fabrication of welded products and structures.

There are many parties involved in the production of weldments including: mechanical design engineers, metallurgical or materials engineers, welders, foremen, quality control and non-destructive examination (NDE) inspectors and in some cases jurisdictional regulators. This course will provide some perspective on each of those roles which will help you have productive discussions with any member of this cross-functional team, regardless of which role you are fulfilling.

Also included is a set of downloadable one-sheet checklists covering a variety of topics that will help you ensure the daily success of your welding operations from design to fabrication to final inspection and acceptance.
By participating in this course, you will learn how to successfully:

  • Explain how an arc-welding machine generates the heat needed for welding and the necessary conditions to avoid weld defects.
  • Identify common problems with welding processes and explain some troubleshooting concepts.
  • Explain how welding affects various welded materials, including metallurgical and dimensional changes.
  • Describe the advantages and disadvantages of various arc-welding processes.
  • Describe basic weld design concepts, such as weld size determination and communication through weld and welding symbols on drawings.
  • Identify weld inspection techniques, including non-destructive examination technologies.

Who should attend?
New technologists, design engineers, managers and quality personnel who wish to understand the fundamental principles of welding to control and troubleshoot welding processes, reduce operating cost and improve the quality of their product. This course is an ideal prerequisite to the ASME B&PVC Section IX Course for those individuals with little or no prior welding experience.
Course Materials (included in purchase of course)

  • Digital course notes via ASME’s Learning Platform
  • Downloadable Checklists

A Certificate of Completion will be issued to registrants who successfully complete the course and achieve a passing score of 75% or higher on the final exam.

To take this course you should have a personal computer, Web browser, Internet connection, and software to display PDF files (such as Adobe Reader®).


 Module 1: What is welding and how is it accomplished?

  • Electric Circuits for Arc Welding
  • The Welding Arc
  • Material Properties

Module 2: What Are the Effects of Welding on the Welded Structure?

  • Fundamental Steel Metallurgy
  • Metallurgical Transformations In Steel During Welding
  • Residual Stress & Distortion
  • Cracking, Corrosion & Other Degradation

Module 3: Welding Processes

  • Welding Process Categories
  • Flux-shielded processes
  • Gas-shielded processes
  • Process selection

Module 4: Welding of Various Materials

  • Welding of ferrous materials
  • Welding of non-ferrous and dissimilar materials
  • Material Groupings & Specifications

Module 5: Basics of Welding Design

  • Terminology
  • Joint types, weld types, positions
  • Weld strength and weld sizing
  • Design for manufacturability
  • Filler metal selection
  • Overmatched and undermatched
  • Weld and welding symbols
  • Standard parts of a weld symbol
  • Common weld details

Module 6: Weld Examination & Quality Control

  • Roles and responsibilities 
  • Common welding codes & standards
  • Welding qualifications
  • Procedure & performance qualifications
  • Quality inspections
  • Before, during, and after welding
  • Nondestructive examination
  • Welding safety
  • Common welding defects

Bob McReynolds, P.E.

Principal Engineer, Welding & Metallurgical Engineering

Bob McReynolds, P.E., has worked as a welding & metallurgical engineer in the power, defense and infrastructure industries since 1993. He is licensed as a Professional Engineer and is an AWS Certified Welding Engineer and Certified Welding Inspector.

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Guided Study

Online learning augmented with instructor-supported activities and/or graded assignments to complete at your own pace. Courses run in 6-week sessions.
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