South African Journal of Industrial Engineering
On-line version ISSN 2224-7890
Print version ISSN 1012-277X
DU PLESSIS, A.; SEIFERT, T.; BOOYSEN, G. and ELS, J.. Microfocus X-ray computed tomography (CT) analysis of laser sintered parts. S. Afr. J. Ind. Eng. [online]. 2014, vol.25, n.1, pp.39-49. ISSN 2224-7890.
Microfocus X-ray computed tomography (CT) scanning is a three-dimensional (3D) non-destructive technique that is useful in many research and technology fields. Similar to two-dimensional (2D) X-ray inspections, this 3D technology allows the investigation of almost any material down to 1 micron spatial resolution and higher. In this paper we present a characterisation and demonstration of the use of CT to analyse the 3D volume of laser sintered parts including analyses of porosity, dimensional measurement of cracks and other features, and a demonstration of quality testing methods which can be used to quickly identify problems in production.