04:33 Aug-30-2001 Gordon E. Smith Consultant H.C.Nutting, Co., USA, Joined Nov 1998 6
Re: Ping Testing This could be either of two techniques:
1. impact and frequency analysis of ringdown noise..
2. A single A-scan through the part with comparision to an (stored) A Scan through a like section where the grain structure has been analysed. Comparision can be used to rate strength and fracture toughness, other grain related characteristics.