Scientific Publication Citing Dragonfly

The use of nano-computed tomography (nano-CT) in non-destructive testing of metallic parts made by laser powder-bed fusion additive manufacturing

Mehrnaz Salarian (1), Ehsan Toyserkan (1)
The International Journal of Advanced Manufacturing Technology, 98, Issue 9-12, July 2018: 3147-3153. DOI: 10.1007/s00170-018-2421-z

Keywords

Additive manufacturing, Laser powder-bed fusion, X-ray computed tomography (XCT),Nano-scale, Micro-scale

Abstract

Computed tomography (CT) magnifies the spectrum of measurable internal features with minimal preparation and exceptional resolution. In this study, non-destructive nano-scale and micro-scale CT examinations of aluminum-based part manufactured by laser powder-bed fusion additive manufacturing (LPBF-AM) are compared to determine the extent of defect details (size and distribution of defects/pores) not detectable with micro-CT. Our findings show nano-CT system is able to provide insightful information for effective characterization of AM-made parts to predict their strength/durability more reliably.

How Our Software Was Used

Dragonfly was used to perform advanced image processing and porosity analysis.

Author Affiliation

(1) Multi-Scale Additive Manufacturing Lab, Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, Canada

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