What is Defects in welding and how to mitigate it

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Accepted Answer

Defects in welding are imperfections or flaws that occur during the welding process.

Common defects include porosity, undercutting, incomplete fusion, and cracks.
Porosity is caused by gas entrapment and can be mitigated by using proper shielding gas and cleaning the base metal.
Undercutting is a groove formation at the weld toe and can be reduced by adjusting welding parameters.
Incomplete fusion occurs when the weld metal does not properly fuse with the base metal and can be prevented by ensuring proper heat input and joint preparation.
Cracks can be avoided by controlling the cooling rate and using preheating techniques.
Regular inspection and quality control measures can help identify and mitigate defects in welding.

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