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Technical Discussions
Shuvam Chakraborty
Shuvam Chakraborty
 12:53 Feb-27-2024
https://www.ndt.net/forum/thread.php?msgID=87660#87660
Confusion regarding ultrasonic testing in J groove

I am having problems while inspecting J groove weld....there is always twin peaks throughout the weld....and mostly the depth of the those two peaks are 1. ( 40- 45 mm ), 2. ( 30- 36 mm ) [ note : weld thickness= 45 mm , 16 inches diameter ] , need help to understand the origin of those echoes.....thank you.

 
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Paul Holloway
Consultant, Holloway NDT & Engineering Inc , Canada, Joined Apr 2010,
454 14

Paul Holloway
Consultant,
Holloway NDT & Engineering Inc ,
Canada,
Joined Apr 2010
454 14
22:29 Feb-27-2024
https://www.ndt.net/forum/thread.php?msgID=87661#87661
Re: Confusion regarding ultrasonic testing in J groove In Reply to Shuvam Chakraborty at 12:53 Feb-27-2024 (Opening).

I'm not sure any of us here are qualified to troubleshoot this based on merely a text description alone.

Is this conventional UT? Phased array? Do you have screenshots, weld diagrams?

I would suggest drawing the weld out with something like ESBeamTool and tracing the paths to the actual weld geometry and probe index position.

 
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