
Piping Engineering World
June 17, 2025 at 06:09 PM
๐๐๐ฅ๐๐ข๐ง๐ ๐๐๐๐๐๐ญ๐ฌ: ๐ ๐๐ฎ๐ข๐๐ค ๐๐ฎ๐ข๐๐ ๐๐จ๐ซ ๐๐ง๐ ๐ข๐ง๐๐๐ซ๐ฌ ๐๐ง๐ ๐๐๐ฅ๐๐๐ซ๐ฌ ๐บ
Welding is a critical process in fabrication, but it's not without its challenges. Understanding common welding defects is essential for ensuring strong, reliable joints and maintaining structural integrity. Here's a quick look at 8 frequent welding defects every welder and engineer should be aware of:
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Cracks are serious defects that weaken the weld and can propagate under stress, often caused by rapid cooling or high residual stresses.
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Porosity appears as gas pockets or voids within the weld, usually due to contamination or improper shielding gas during welding.
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Undercut occurs when the weld metal fails to fill the groove between the base metals, leaving a groove along the weld toe, reducing strength.
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Collapse is a structural failure where the weld loses its profile due to excessive heat input or poor joint design.
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Spatter consists of small metal droplets scattered around the weld area, often caused by high current or incorrect arc length.
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This defect results from exposure to air during welding, leading to discoloration and a weakened weld zone due to oxidation.
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Burn-through occurs when the base metal melts away, creating holesโoften due to excessive heat or thin base material.
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Poor forming refers to improper weld shape or bead formation, affecting both aesthetics and strength of the joint.
๐ Ensuring proper technique, parameters, and joint preparation is key to avoiding these defects and achieving high-quality welds.
Letโs keep building better, safer structuresโone weld at a time
