welding defects
TRANSCRIPT
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WELDING
INSPECTORS
WORKSHOP
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WELDING INSPECTION
Welding inspection is used to verify that welding has been performed in accordance with the appropriate welding procedure and that the result has produced a compliant weld
Welding inspection techniques include visual inspection, non-destructive and destructive testing as well as audits of the process
A defect is a condition of the weld that is out-with the boundaries of acceptability in relation to the particular standard
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Linear Misalignment
Offset or Mismatch
High-low
Manual Metal
Arc Welding MMA
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Offset or Mismatch
with lack of Root
Fusion
Manual Metal
Arc Welding MMA
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Cap concavity or insufficient fill
Manual Metal
Arc Welding MMA
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Excessive root penetration
Manual Metal
Arc Welding MMA
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External Undercut Manual Metal
Arc Welding MMA
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Root Undercut Manual Metal
Arc Welding MMA
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Root Concavity (suck back)
Manual Metal
Arc Welding MMA
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Root burn-through Manual Metal
Arc Welding MMA
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Incomplete or lack of root penetration
Manual Metal
Arc Welding MMA
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Inter-pass Slag Inclusions
Manual Metal
Arc Welding MMA
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Elongated Slag lines (wagon tracks)
Manual Metal
Arc Welding MMA
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Lack of side wall fusion
Tungsten Inert Gas Welding TIG
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Inter-pass cold lap-lack of side wall fusion
Tungsten Inert Gas Welding TIG
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Scattered Porosity
Manual metal arc welding MMA
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Cluster Porosity Manual metal arc welding MMA
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Root aligned porosity
Tungsten Inert Gas Welding TIG
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Transverse cracks Tungsten Inert Gas Welding TIG
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Longitudinal crack TIG/MMA
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Longitudinal root crack
Manual metal arc welding MMA
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Tungsten inclusions Tungsten Inert Gas Welding TIG