Piping Engineering World
Piping Engineering World
June 17, 2025 at 06:09 PM
๐–๐ž๐ฅ๐๐ข๐ง๐  ๐ƒ๐ž๐Ÿ๐ž๐œ๐ญ๐ฌ: ๐€ ๐๐ฎ๐ข๐œ๐ค ๐†๐ฎ๐ข๐๐ž ๐Ÿ๐จ๐ซ ๐„๐ง๐ ๐ข๐ง๐ž๐ž๐ซ๐ฌ ๐š๐ง๐ ๐–๐ž๐ฅ๐๐ž๐ซ๐ฌ ๐Ÿ”บ 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: ๐Ÿ. ๐‚๐ซ๐š๐œ๐ค Cracks are serious defects that weaken the weld and can propagate under stress, often caused by rapid cooling or high residual stresses. ๐Ÿ. ๐๐จ๐ซ๐จ๐ฌ๐ข๐ญ๐ฒ Porosity appears as gas pockets or voids within the weld, usually due to contamination or improper shielding gas during welding. ๐Ÿ‘. ๐”๐ง๐๐ž๐ซ๐œ๐ฎ๐ญ Undercut occurs when the weld metal fails to fill the groove between the base metals, leaving a groove along the weld toe, reducing strength. ๐Ÿ’. ๐‚๐จ๐ฅ๐ฅ๐š๐ฉ๐ฌ๐ž Collapse is a structural failure where the weld loses its profile due to excessive heat input or poor joint design. ๐Ÿ“. ๐’๐ฉ๐š๐ญ๐ญ๐ž๐ซ Spatter consists of small metal droplets scattered around the weld area, often caused by high current or incorrect arc length. ๐Ÿ”. ๐Ž๐ฑ๐ข๐๐š๐ญ๐ข๐จ๐ง ๐๐ฅ๐š๐œ๐ค๐ž๐ง๐ข๐ง๐  This defect results from exposure to air during welding, leading to discoloration and a weakened weld zone due to oxidation. ๐Ÿ•. ๐๐ฎ๐ซ๐ง๐ข๐ง๐ -๐“๐ก๐ซ๐จ๐ฎ๐ ๐ก Burn-through occurs when the base metal melts away, creating holesโ€”often due to excessive heat or thin base material. ๐Ÿ–. ๐๐จ๐ซ ๐…๐จ๐ซ๐ฆ๐ข๐ง๐  Poor forming refers to improper weld shape or bead formation, affecting both aesthetics and strength of the joint. ๐Ÿ“Œ Ensuring proper technique, parameters, and joint preparation is key to avoiding these defects and achieving high-quality welds. Letโ€™s keep building better, safer structuresโ€”one weld at a time
Image from Piping Engineering World: ๐–๐ž๐ฅ๐๐ข๐ง๐  ๐ƒ๐ž๐Ÿ๐ž๐œ๐ญ๐ฌ: ๐€ ๐๐ฎ๐ข๐œ๐ค ๐†๐ฎ๐ข๐๐ž ๐Ÿ๐จ๐ซ ๐„๐ง๐ ๏ฟฝ...

Comments