Advanced active thermography for weld joint inspection

Ensuring the integrity and mechanical performance of critical components is essential in many industrial applications. Widely used inspection methods have several limitations: destructive testing is accurate but involves sample destruction and time-consuming procedures, ultrasonic testing is slow and requires contact and skilled operators, and radiographic testing is expensive and demands stringent safety measures. This work presents an innovative nondestructive inspection method based on active infrared thermography. Modulated heat sources locally heat the specimen while advanced algorithms process the resulting thermal images to generate high-contrast maps for rapid defect detection and material characterization. Its costeffectiveness and ease of integration into in-line production processes make it highly suitable for automotive, aerospace, and high-precision manufacturing applications.