DIN Standards Committee Materials Testing
Non-destructive testing - Testing of welded joints using active thermography - Methods of inductive and laser-excited thermography
Abstract
This document specifies the use of laser-excited and inductively excited thermography to detect surface inhomogeneities in welded joints. The test methods are applicable to metallic materials. The test methods are suitable for detecting irregularities on the tested surface, such as cracks. The document applies to accessible joints with simple geometry such as in plates, pipes and containers. For the testing of welded joints with more complex geometry (e.g. the testing of corner joints), this document provides guidance. This document specifies the requirements for the testing technology and describes the application of the two thermographic methods for the detection and characterization of irregularities in welded joints. This document specifies the use of laser-excited and inductively excited thermography to detect surface inhomogeneities in welded joints. The test methods are applicable to metallic materials and are suitable for detecting irregularities on the tested surface, such as cracks. The document applies to accessible joints with simple geometry such as in plates, pipes and containers. For the testing of welded joints with more complex geometry (e.g. the testing of corner joints), this document provides guidance. This document specifies the requirements for the testing technology and describes the application of the two thermographic methods for the detection and characterization of irregularities in welded joints. The thermographic methods described here can be used independently or in conjunction with other methods or techniques of non-destructive testing for tests during manufacture, before commissioning and for tests during operation.
Begin
2025-03-14
Planned document number
DIN 54188
Project number
06236510
Responsible national committee
NA 062-11-16 AA - Thermographic testing
draft standard
Non-destructive testing - Testing of welded joints using active thermography - Methods of inductive and laser-excited thermography
2025-11
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