1. Weld Joint Geometry and Welding Symbols
Types of welds
Groove welds
Welding Technology
Lee Co. ATC
Images compliments of
the American Welding Society

2. Types of Welds
Numerous welds can be applied to the various types of joints
Considerations when choosing joint geometry and weld types:
accessibility to the joint for welding
type of welding process being used
suitability to the structural design
cost of welding

3. Types of Welds
There are nine categories of welds associated with weld symbols
Groove welds
Fillet Welds
Plug or Slot welds
Stud welds
Spot or projection welds
Seam welds
Back Or Backing welds
Surfacing welds
Flange Welds

4. Types of Welds Groove Welds
A groove weld is “ a weld made in a groove between the work pieces”
There are eight types of groove welds
Square-groove
Scarf
V-groove
Bevel-groove
U-groove
J-groove
Flare-v-groove
Flare-bevel-groove

5. Groove Welds Square and double square-groove welds
Square-groove welds are the most economical to use, but are limited by thickness of the members
Welds for one side are normally limited to a 1/4 inch or less

6. Groove Welds V-and double V-groove welds
With thicker materials joint accessibility must be provided for welding to ensure weld soundness and strength

7. Groove Welds Bevel- and double-bevel-groove welds
Bevel- and J- groove welds are more difficult to weld than V- or U- groove welds
Bevel welds are easier in horizontal

8. Types of Welds U-groove and Double U-groove
Welds in using J- and U-grooves can be used to minimize weld metal
These welds are very useful in thicker sections

9. Groove Welds J-and double-J-groove welds
J-groove are more difficult to weld because of the one vertical side (except in horizontal)
J-and U- are used when economic factors outweigh the cost of edge preparation

10. Groove Welds flare-bevel and flare-v-groove welds
Flare -bevel and flare-v-groove welds are used in connection with flanged or rounded member

11. Groove Welds Scarf
Scarf is used for brazing

12. Groove Welds
Their names imply what the actual configurations look like when viewed in a cross section
Single groove welds are welded from only one side
Double groove welds are welded on both sides
Groove welds in many combinations are used selection is influenced by accessibility, economy, adaptation to structural design