Pre-Weld Inspection on a High Frequency Tube Mill

Most HF tube mills run with limited visibility to the welding process. Operators rely on experience, indirect measurements, and post-weld testing.  But the Weld "V" — its angle, length, apex location, seam gap, and temperature — holds the answers to consistent weld quality.

This whitepaper covers:

• Why the V-Angle, V-Length, and Seam Gap matter — and how they affect weld quality.
• Why pyrometers fall short compared to thermal imaging.
• How a SWIR thermal camera measures geometric and temperature data in real time. 
• Real examples of the system catching fin pass damage before it became a quality issue.