WELDING SYMBOLS What you will know at the

WELDING SYMBOLS

What you will know at the end of this lesson… • The Importance of the welding symbols • The Difference between a Weld Symbol and a Welding Symbol • How the welding symbols are applied • What each welding symbol means *

How do we know how something is to be welded? Welding symbols are instructions for welders… Welding symbols are a simplified language that conveys the information needed to complete the work without lengthy instructions. Without welding symbols welders would simply not understand how the customer wants the product to be completed. *

What is the difference between a weld symbol and a welding symbol? A weld symbol is a single graphic that shows a specific type of weld. A welding symbol is a graphic that contains at least a reference line and a weld symbol. Welding Symbol For instance… Weld symbol VS *

The Parts of a Welding Symbol Reference Line – The main element of any welding symbol that runs horizontally. There must be a reference line in order for there to be a welding symbol. *

The Parts of a Welding Symbol Arrow – The part of the welding symbol that connects the reference line to the area to be welded. *

The Parts of a Welding Symbol Tail – The part of the weld symbol that explains extra information that cannot be described by any other part of the welding symbol. These items include specifications, position, notes, or any other reference. *

The Parts of a Welding Symbol What is the primary part of a welding symbol that you must have in order to have a welding symbol? Reference Line! *

Welding Symbols Regardless of which way the arrow is pointing the arrow Where does the weld go on the weld joint? side is always on the bottom and the other side is always on the top. *

Welding Symbols Fillet Weld 1) Other side *

Welding Symbols V Groove Weld 2) Arrow side *

Welding Symbols Bevel Weld 3) Arrow side *

Welding Symbols Bevel Weld 4) Both sides *

Welding Symbols Flare Bevel Weld 5) Arrow side *

Welding Symbols Flare V Groove Weld 6) Other side *

Welding Symbols Square Groove Weld 7) Other side *

Welding Symbols Edge Weld 8) Other side *

Welding Symbols J Groove Weld 9) Arrow side *

Welding Symbols U Groove Weld 10) Both sides *

Welding Symbols Plug or Slot Weld 11) Arrow side *

Welding Symbols Stud Weld 12) Arrow side *

Welding Symbols Spot Weld 13) Other side *

Welding Symbols Spot Weld 14) No side significance *

Welding Symbols Seam Weld 15) Arrow side *

Welding Symbols Seam Weld 16) No side significance *

Welding Symbols Back or Backing Weld 17) Other side *

Welding Symbols Melt Through 18) Other side *

Welding Symbols Surfacing Weld 19) Arrow side *

Welding Symbols Weld All Around 20) *

Welding Symbols Field Weld 21) Other side *

Welding Symbols Backing Bar 22) Other side *

Welding Symbols Consumable Insert 23) Other side *

Welding Symbols Spacer 24) *

Welding Symbols Flush Contour 25) Other side *

Welding Symbols Concave Contour 26) Other side *

Welding Symbols Convex Contour 27) Other side *

So what do these mean? Fillet Lets Weld apply Arrow them! Side 1) *

So what do these mean? Bevel Weld Other Side 2) *

So what do these mean? V Groove Arrow Side with a Back Weld Other Side 3) *

So what do these mean? U Groove Both Sides 4) *

So what do these mean? J Groove Other Side 5) *

So what do these mean? Flare Bevel Both Sides 6) *

So what do these mean? Flare V Groove Both Sides 7) *

So what do these mean? Slot Weld Arrow Side 8) *

So what do these mean? Surfacing Arrow Side 9) *

Lets wrap it up! • Without welding symbols welders would not know what types of welds are required. • The reference line is the primary element needed in a welding symbol. • The Arrow Side is always on the bottom of the reference line. • The Other Side is always on the top of the reference line.