Industrial computed tomography (CT): what is it, and when should it be used for non-destructive testing (NDT)?
CT reconstructs an internal and external 3D volume in a single scan, without damaging the part. It is used to see and measure: microstructure, porosity/inclusions, fibres/composites, welds/bonds, assemblies and metrology. Benefits: a more reliable process, less scrap, quality evidence.
What is the difference from conventional 2D radiography?
2D radiography superimposes planes; CT provides a navigable 3D volume (slices, views, measurements) that reveals and quantifies internal defects and geometric deviations.
How fine a level of detail can be observed in a part with micro-CT?
Thanks to our
nano tube, sub-micron observation is possible, down to 0.25 µm, so you can see the finest details in your parts and materials.
Composites and fibres: what analyses does CT provide?
Industrial X-ray CT is the only inspection technique that can easily characterise the overall structure of a composite component. It provides accurate measurements, from the complete structure down to the individual fibre – all the structural and dimensional aspects of a composite part can be assessed from a single dataset.
What is the most common analysis in CT? What does CT bring to porosity/inclusion analysis?
The most frequently performed analysis is the detection and quantification of porosity and inclusions, down to a few hundred nanometres. Post-processing software displays the defects in 3D with a colour code and positions them within the volume of the part.
Can an assembly be checked without taking it apart?
Yes: CT is not limited by geometry, and inspects complex assemblies at any stage of production.
What is 4D CT?
It is CT with the time dimension: it tracks the evolution of a part (movement, damage) dynamically, over one or more scans, including under load (tension, heat, etc.), using dedicated cells.