Automated inspection of thermit welds: A survey of methods and logistics for the automation of thermit weld inspection (LR-IMS-018)

BR currently experiences 600 thermit weld failures per year, of which are welds which break in track. A risk analysis confirmed the need for a viable non-destructive testing method, to reduce the number of failures. The existing manual ultrasonic method was developed following the Bushey derailment of 1980, but is...