Welding Consumables · 0:25
Why does a weld look good but still fail?
Andy — The Welding Guy Training Manager · PCN Weld Inspector · Laser Safety Officer (LSO) · Graduate Teacher Training Even the best inspector in the world doesn't have X-ray vision. A weld may look perfect on the surface, but underneath it could have defects such as lack of penetration, lack of fusion, porosity, or insufficient heat input. And those are just a few of the possible issues.Part of Ask the Experts: short, practical answers from the Weldability SIF team. No marketing, no sales pitch — just the people who are on the tools and on site every week.
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Hi. Why does a weld sometimes look good but still fail? Even the best inspector in the world doesn't have X-ray vision.
A weld may look perfect on the surface, but underneath it could have defects such as lack of penetration, lack of fusion, porosity, or insufficient heat input. And those are just a few of the possible issues.
