04:37 Apr-13-2009 R Duwe NDT Inspector, API-510, 570, 653 MISTRAS, USA, Joined Jan 2009 148
Re: locating ERW Weld BondlineIn Reply to Abhijat Dasgupta at 19:46 Apr-12-2009 (Opening).
I have had a fairly easy time locating the bond using a Shearwave UT and a appropriatly small 70 degree transducer. Actually, you are finding the 'absence of bond', as a sound weld will not return any appreciable signal. Lack-of Fusion in any weld is best found with UT, in my opinion.