APPLICATION OF ULTRASONIC C-SCAN IMMERSION FOCUSSING TECHNOLOGY TO THE TESTING OF BRAZE QUALITY OF TURBINE IMPELLER

The reliability and feasibility of ultrasonic C scan testing of the braze quality of turbine impeller by immersion focussing method were proved by theory and practice. The character and process of the technology were analyzed and studied. At the same time, the USL five axis controlled ultrasonic C scan system was introduced.