AN AUTOMATIC COMPUTERIZED ULTRASONIC CLEANLINESS RATING SYSTEM AND CALIBRATION STANDARDS
Abstract
An ultrasonic cleanliness rating system containing high speed data processing facilities was successfully designed, assembled and tested. The system is automatic and can rapidly assess internal cleanliness (non metallic inclusions) of semi-finished material with a high degree of resolution (6 x 10 to the 6th power sq. in.). Cleanliness ratings determined by AMS 2301 and the ultrasonic system showed no correlations. However, by modifying the AMS 2301 specification and inspecting a substantially greater number of surfaces, a relationship was established. Inclusion areas as assessed by light microscopy were closely related with inclusion areas measured with the ultrasonic system.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1967
- Accession Number
- AD0825056
Entities
People
- C. J. Carter
- J. W. Abar
- R. A. Cellitti