stuvy
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You don’t need to macro section it to see the penetration
it’s a cheaper alternative than an X-ray
You don’t need to macro section it to see the penetration
Am I missing something here but why would you need either an X-ray or macro to see penetration on a butt weld test piece, you just turn it over and look at it. If the spec is calling for 80% penetration on a 200mm long test piece just measure it and if the penetration bead is longer than 160mm it’s ok, simplesit’s a cheaper alternative than an X-ray
I wasn’t sure that there was any other way of measuring pen on a tee fillet other than a destructive test all along the weld.Coming back to your original post, you do not need an x Ray machine to measure the penetration, especially a test piece
I am aware of seeing the pen on a butt weld. I was looking at alternative options other than the butt weld, for reasons mentioned (straight runs and no capping run not ‘real life’ or as would be in Industry) so was wondering if there was a way of seeing the 80% pen, as specified, on a tee fillet.Am I missing something here but why would you need either an X-ray or macro to see penetration on a butt weld test piece, you just turn it over and look at it. If the spec is calling for 80% penetration on a 200mm long test piece just measure it and if the penetration bead is longer than 160mm it’s ok, simples
Apologies. You phrased it correctly.So you mean the weld needs to penetrate for over 80% of the length of the weld..........thats better
The easiest way is to break it open....assuming its only short...........nick the back and break it open you will see the bits where theres no pen (straight lines)
It is all a bit confusingJust so we’re all clear, are you talking about the penetration bead on a full penetration butt weld which you can see or the amount of fusion on a fillet weld which needs destructive testing like macros/fracture tests or UT
in dip....vertical up.....I know, even on the 10 mm plate you’d have to go like the clappers
Agreed, going back to the O.P., there is no need to X-ray a full penetration butt weld just to check if you have full penetration over 75% of the weld lengthThe wps also says how to test it.
Is this for college training?
If you have a qualified procedure, (proven that it works) you should be in the correct ball park... assuming it's being followed.
If you havnt got one, do some samples, keeping track of the settings etc, then do some etched and destructive tests... if it passes your tests, have it done by a lab.
Once the repeatability is proven, that should negate the need for xrays in the majority of training environments...
Again, apologies for the lack of clarity on my part: Let me try again - obviously there is no issue with seeing the penetration on the butt weld. That is not the issue. The issue is this - due to the fact that the spec of several vertical runs up a bevelled 6mm (6mm min) butt joint is not what would happen in Industry / 'real life' (we know that a root run and one capping run would be appropriate, but we are not allowed to do this by the awarding body).Just so we’re all clear, are you talking about the penetration bead on a full penetration butt weld which you can see or the amount of fusion on a fillet weld which needs destructive testing like macros/fracture tests or UT