[en] Pulsed magnetic welding is being evaluated as a process for welding fuel cladding to the end plug for nuclear fuel pins. A continuous metallurgical bond is required between the plug and clad because this joint must function as a gas and coolant seal for the fuel pin. An ultrasonic technique utilizing a computer controlled scanner was developed to inspect these welds. First, fuel pin specimens were profiled in the weld zone region by determining actual surface coordinates. This step eliminated variable geometry effects and guaranteed proper transducer alignment during the scanning. Second, scans were made using positional information obtained during profiling, and ultrasonic data were digitized and stored for computer analysis. Third, analysis algorithms were used to recognize unbonded regions, and total unbonded area was calculated. Finally, A-scan and C-scan plots were generated by the computer