On the Use of X-ray Computed Tomography in Assessment of 3D-Printed Components
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On the Use of X-ray Computed Tomography in Assessment of 3D-Printed Components Mohammad Reza Khosravani1
· Tamara Reinicke1
Received: 12 May 2020 / Accepted: 9 September 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Technical advantages of additive manufacturing (AM) have drawn great attention over the past few years. This cost-effective manufacturing process proved its potential applications in a wide range of fields. Although AM techniques (known as 3D printing) are able to fabricate geometrically complex components, it is necessary to evaluate internal and external dimensions of the printed parts. In this context, x-ray computed tomography (CT) as a nondestructive evaluation technique has been utilized. Indeed, CT can be used for geometric analysis, defects detection, quantitative comparison, structural quantification and porosity analysis. In the current study, we present a brief review of 3D printing processes and evolution of CT technology. Moreover, applications of CT in assessment of 3D-printed components are explained in detail. Although CT has been used in academic and industrial researches, abilities of this inspection method are not yet fully documented for precision engineering applications. In this work, usage of this technique in study of printed components are categorized in four subdomains and discussed. The documented data proved that CT is an appropriate non-contact technique for technical evaluation of various printed parts. As usage of CT in assessment of printed parts is still evolving, the limitations, challenges and future perspective are outlined. Keywords 3D printing · X-ray computed tomography · Manufacturing process · Geometric analysis
1 Introduction Additive manufacturing (AM) is a manufacturing process with new capabilities that can solve design problem and optimize the fabrication process. AM (more colloquially: 3D printing) is a popular rapid prototyping process that has been significantly used in several applications area [1–5]. Although various manufacturing processes have been developed over the years [6–10], 3D printing technology proved its unique and favorable abilities in fabrication of geometrically complex components. 3D printing technology has progressed significantly in the recent years, but there are several production aspects which needed further investigations. For instance, invalid printing conditions and wrong processing parameters can lead to unwanted porosity. Moreover, mechanical properties can be changed, and residual stresses can leads to deformation. These issues are important
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Mohammad Reza Khosravani [email protected] Institute of Product Development, University of Siegen, Paul-Bonatz-Str. 9-11, 57068 Siegen, Germany
and complicated in 3D printing of the geometrically complex workpieces. Therefore, qualification of printing process and evaluation of 3D-printed components are necessary. In evaluation of the manufacturing processes and fabricated parts, various techniques have been developed ove
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