X-ray digital detector array radiology to infer sagging depths in welded assemblies

摘要

X-ray digital radiology is increasingly used in aerospace industries because of their numerous advantages such as the non-use of consumables and chemicals products, capability to store information via digital media, control time reduction, etc. Nowadays, X-ray digital radiology provides new application perspectives for industrials. In this study, X-ray digital detector array radiology (DDA) was used to infer geometrical welding flaws such as sagging depths by measuring grey level differences. Two representative samples batches of real parts are tested according to different alloys (Nickel and Cobalt-based alloy). Sagging depths of welded samples were measured by X-ray technique, Laser profilometer and micrographic cuts, providing good correlation, in the range of 30-250 μm. These results show the X-ray DDA technique ability to evaluate such welding flaws and provide new perspectives for applications on real parts.