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

Thompson, Adam; Senin, Nicola; Giusca, Claudiu L.; Leach, Richard K.

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.

Citation

Thompson, A., Senin, N., Giusca, C. L., & Leach, R. K. (2017). Topography of selectively laser melted surfaces: A comparison of different measurement methods. CIRP Annals - Manufacturing Technology, 66(1), 543-546. https://doi.org/10.1016/j.cirp.2017.04.075

• Journal Article Type: Article
• Acceptance Date: Apr 4, 2017
• Online Publication Date: Apr 29, 2017
• Publication Date: 2017
• Deposit Date: May 5, 2017
• Publicly Available Date: Oct 30, 2018
• Journal: CIRP Annals - Manufacturing Technology
• Print ISSN: 0007-8506
• Electronic ISSN: 1726-0604
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 66
• Issue: 1
• Pages: 543-546
• DOI: https://doi.org/10.1016/j.cirp.2017.04.075
• Keywords: Metrology; Surface analysis; Selective laser melting (SLM)
• Public URL: https://nottingham-repository.worktribe.com/output/858345
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S0007850617300756?via%3Dihub
• Additional Information: This article is maintained by: Elsevier; Article Title: Topography of selectively laser melted surfaces: A comparison of different measurement methods; Journal Title: CIRP Annals; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.cirp.2017.04.075; Content Type: article; Copyright: © 2017 Published by Elsevier Ltd on behalf of CIRP.
• Contract Date: May 5, 2017