Stainless steel composite panel
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Is non-destructive testing required for the lap welds of the cladding in stainless steel composite panels? Is it done before the explosion?
At the very least, a surface inspection should be carried out; it must have been welded together before the explosion.
The seams must be welded before explosion bonding; if your composite plate is intended for use in pressure vessels, surface inspection is required.
This post was last edited by Niuniu Hu on 2020-6-22 at 22:33. What I mean is, should RT or UT be performed on the welds before explosion?
If it is the coating that is in question, neither RT nor UT is very suitable, as both RT and UT testing require a minimum thickness. For the grassroots level, if the company has a reliable welding procedure qualification and competent welders who can ensure weld quality, this step can be omitted; however, testing is generally required after an explosion.