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Welded seam inspection with high energy X-rays

: Scholz, O.; Behrendt, R.; Wenzel, T.; Stocker, T.; Müller, J.


Warrendale, Pa.: SAE, 2011
SAE Technical Papers, 2011-01-0472
Society of Automotive Engineers (World Congress) <2011, Detroit/Mich.>
Fraunhofer IIS ()

The inspection of steel welds is a requirement in many safety critical applications, with X-rays offering an excellent visual aid in quality monitoring of such parts. In order to penetrate the steel and the weld, high energy X-rays are usually required though, depending on the material's thickness and the length of material the X-ray beams must traverse. The high beam energies can seriously degrade the X-ray detectors' life expectancy and image quality, so in order to ensure consistent image quality traditional X-ray film has been used, in spite of its drawbacks regarding the ecological impact of the chemical process and the significant efforts involved if archives of the welds must be maintained.