UNDERSTANDING WELDING SYMBOLS

• Anyone involved in the design, fabrication, or inspection of welded, brazed, or soldered joints
• Anyone wishing to learn how to decipher welding symbols and prints
• Anyone seeking to prepare for the AWS Certified Welding Inspector exam
• Anyone seeking to prepare for the AWS Certified Welding Inspector exam
  • This student body may encompass many positions, including:
    
    • Welders
    • Welding engineers
    • Welding inspectors
    • Welding sales reps
    • Welding supervisors
    • Shop owners

Prior to taking this course, students should be familiar with basic welding processes and welding terminology. This prerequisite knowledge can be obtained by: 

• Taking the AWS Welding Fundamentals I online course 
• Obtaining and reading a copy of AWS A3.0 Standard Terms and Definitions 

This course teaches students how to:

• Identify basic components of a welding print
• Differentiate between different joint and weld types
• Read and construct welding, brazing, and nondestructive examination symbols

Upon completion of Understanding Welding Symbols, students will be able to:

• Discuss the basic elements and fundamental principles of object representation
• Distinguish between the different lines used on a welding print
• Indicate key elements of a welding drawing
• Identify common joint types and edge preparations
• Correlate welds with basic joint types
• Distinguish between the different types of welds and their respective symbols
• Label parts of a weld
• Identify the location of a weld with respect to the joint using the elements included on a print
• Construct a welding symbol in order to demonstrate an understanding of print interpretation
• Analyze a welding symbol to determine the characteristics and dimensions for a requested weld
• Explain the rules governing the use of the arrow, reference line, supplementary symbols, and combined welding symbols
• Describe the function and appropriate placement of supplementary data within a welding symbol
• Describe a required braze by deciphering the parameters detailed within a brazing symbol
• Determine the NDT method to be used by analyzing a nondestructive examination symbol
• Analyze a combined welding and nondestructive examination symbol

• Module 1 – Fundamentals of Object Representation
• Module 2 – Lines and Welded Joints
• Module 3 – Basics of Weld Types and Weld Symbols I
• Module 4 – Basics of Weld Types and Weld Symbols II
• Module 5 – Reading Welding Symbols I – Basic Parts of a Welding Symbol, Weld Location, and Symbol Orientation
• Module 6 – Reading Welding Symbols II– Arrows, Reference Lines, and Supplementary Data
• Module 7 – Reading Welding Symbols III – Extent of Welding
• Module 8 – Reading Welding Symbols IV–Tail, Contour Symbols, and Melt-Through Symbol
• Module 9 – Groove Welds I – Groove, Groove Welds, and Arrows
• Module 10 – Groove Welds II– Depth of Groove and Size of Weld Dimensions
• Module 11 – Groove Welds III – Special Case Dimensions and Root Opening
• Module 12 – Groove Welds IV– Groove Angle, Groove Radius, and Weld Length
• Module 13 – Groove Welds V– Intermittent Welds and Weld Contours
• Module 14 – Groove Welds VI – Back and Backing Welds
• Module 15 – Groove Welds VII– Backing, Spacers, and Consumable Inserts
• Module 16 – Groove Welds VIII– Backgouging, Seal Welds, and Skewed Joints
• Module 17 – Fillet Welds I: Anatomy of a Fillet Weld, Fillet Weld Size, Dimension lines, and Notes in the Tail
• Module 18 – Fillet Welds II: Double Fillet Welds, Notes on a Print, Fillet Weld Length, Hatching Lines, and Changes in the Direction of Welding
• Module 19 – Fillet Welds III: Fillet weld length and intermittent fillet welds
• Module 20 – Fillet Welds IV: Weld Contours, Combined Weld Symbols, and Skewed Joints
• Module 21 – Plug and Slot Welds I: Plug Weld Size, Slot Weld Width, and Slot Weld Length
• Module 22 – Plug and Slot Welds II: Angle of Countersink, Depth of Filling, and Number of Welds
• Module 23 – Plug and Slot Welds III: Pitch, Centerlines, and Joints with Three or More Members
• Module 24 – Spot and Projection Welds I: Size and Strength, Number of Welds, and Pitch
• Module 25 – Spot and Projection Welds II: Weld Process Reference, Grouped Spot Welds, and Multiple Member Spot Welds
• Module 26 – Stud Welds
• Module 27 – Seam Welds I: Size, Strength, Welding Process Reference, and Length
• Module 28 – Seam Welds II: Intermittent Seam Welds, Number of welds, Contours, and Multiple Member Seam Welds
• Module 29 – Surfacing Welds
• Module 30 – Edge Welds I: Size, Length, Double Edge Welds, and Change in Direction
• Module 31 – Edge Welds II: Chain Intermittent Edge Welds and Staggered Intermittent Edge Welds
• Module 32 – Edge Welds III: Extent, Location, Joints with Three or More Members, and Combined Weld Symbols
• Module 33 – Brazing Symbols
• Module 34 – Nondestructive Examination Symbols I: Letter Designations, Side Significance, Multiple Tests, Combined Symbols, and Supplementary Symbols
• Module 35 – Nondestructive Testing Symbols II: Specifying Location and Extent of Examination