[PPT]Welding Symbols · Web viewWelding Symbols Understanding Welding Symbols Terms and...
Transcript of [PPT]Welding Symbols · Web viewWelding Symbols Understanding Welding Symbols Terms and...
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Welding Symbols
Understanding Welding SymbolsTerms and Definitions
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Created By Jeffrey Rodenbarger Drake-Williams Steel
Omaha, Nebraska
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Reference Line (Required element)
•Reference Line
Always Horizontal
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Reference Line (Required element)
Arrow
Arrow Line
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Reference Line (Required element)
Arrow
Tail
Tail
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Reference Line (Required element)
Arrow
Tail
Reference Line must always be horizontal,
Arrow points to the line or lines on drawing which clearly identify the proposed joint or weld area.
The tail of the welding symbol is used to indicate the welding or cutting processes, as well as the welding specification, procedures, or the supplementary information to be used in making the weld.
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Reference Line (Required element)
Arrow
Tail
Reference Line must always be horizontal,
Arrow points to the line or lines on drawing which clearly identify the proposed joint or weld area.
The tail of the welding symbol is used to indicate the welding or cutting processes, as well as the welding specification, procedures, or the supplementary information to be used in making the weld.
Basic components of a WELDING SYMBOL
Tail omitted when reference not used
Arrow connects reference line to arrow side member of joint or arrow side of joint
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A circle at the tangent of the arrow and the reference line means welding to be all around.
All the way Around
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A flag at the tangent of the reference line and arrow means Field Weld.
Field Weld Symbol
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ARROW SIDE
OTHER SIDE
Weld Symbol Terminology
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Break in arrow means arrow side must be side that beveling or other preparation required.
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Fillet Weld (Arrow Side Only)
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Fillet Weld (Other Side)
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1/4
1/4
Size of Fillet Weld Noted
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1/4
1/4
(5/16)
(5/16)
Depth of preparation or groove
Depth of penetration
Example of Double Bevel Groove weld
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Plug or Slot Weld SymbolArrow Side
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5/16
5/16
What does this symbol Represent?
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5/16
5/16
Single-Bevel-Groove and Double Fillet Weld Symbol
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Single-Bevel-Groove and Double Fillet weld Symbols
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Chain Intermittent Fillet WeldWeld both sides each end and 10 inches center to center in between
1/4
1/4
2-10
2-10
10 in
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Staggered Intermittent Fillet Weld
Weld ends than 10 inch centers staggered each side
10 in
10 in
2-102-101/4
1/4
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S(E) L-P
F
A
R
(N)
Depth of bevel
Groove weld size
Finish Symbol Groove Angle included angle of countersink for plug welds
Root opening; Depth of filling for plug and slot welds.
Pitch(Center-to-center spacing) of welds
Number of spot, seam, stud, plug, slot, or projection welds
ARROW SIDEOTHER SIDE
FIELD WELD
Length of weld
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The End