AEROSPACE QUALITY RADIOGRAPHIC DIGITAL IMAGERY THE USE OF COMPUTED RADIOGRAPHY AS A DIRECT FILM REPLACEMENT

摘要

This presentation encompasses the solution to an Inspection Task describing the actions taken by Smith's Aerospace Corporation when faced with the challenge of inspecting a new product for the Aerospace Industry. The product was a Titanium Welded Assembly, circular in design, with several welds requiring fifty exposures before and after Heat Treatment at a production rate of 25 assemblies per week. Radiographic quality level was required to be true 2-2T using Pratt and Whitney Plaque Type Penetrameters. Utilizing standard Wet Film Radiography, it was determined that the cost and facility burden would render that method of inspection as cost prohibitive. Several Filmless RT Technologies were explored, with the primary consideration being Image Quality, followed by ease of use, and the utilization of existing facilities and personnel, while still maintaining productivity regarding other products being manufactured and inspected Radiographically. After performing feasibility analysis with various available filmless technologies, it was decided to employ the use of flexible Imaging Phosphors (Imaging Plates) coupled to a Computed Radiography System (Reader and Workstation).