Topography of selectively laser melted surfaces: A comparison of different measurement methods

Thompson, Adam and Senin, Nicola and Giusca, Claudiu L. and Leach, Richard K. (2017) Topography of selectively laser melted surfaces: A comparison of different measurement methods. CIRP Annals - Manufacturing Technology, 66 (1). pp. 543-546. ISSN 0007-8506

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Abstract

Selective laser melting (SLM) of metals produces surface topographies that are challenging to measure. Multiple areal surface topography measurement technologies are available, which allow reconstruction of information rich, three-dimensional digital surface models. However, the capability of such technologies to capture intricate topographic details of SLM parts has not yet been investigated. This work explores the topography of a SLM Ti6Al4V part, as reconstructed from measurements by various optical and non-optical technologies. Discrepancies in the reconstruction of local topographic features are investigated through alignment and quantitative assessment of local differences. ISO 25178-2 areal texture parameters are computed as further comparison indicators.

Item Type: Article
Keywords: Metrology; Surface analysis; Selective laser melting (SLM)
Schools/Departments: University of Nottingham, UK > Faculty of Engineering
Identification Number: 10.1016/j.cirp.2017.04.075
Depositing User: Eprints, Support
Date Deposited: 05 May 2017 10:54
Last Modified: 13 Oct 2017 00:48
URI: http://eprints.nottingham.ac.uk/id/eprint/42556

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