Surface Texture Characterization of Metal Selective Laser Melted Part with Varying Surface Inclinations

Shubhavardhan Ramadurga Narasimharaju, Weidong Liu, Wenhan Zeng, TianLong See, Paul Scott, Jane Jiang, Shan Lou

Research output: Contribution to journalArticlepeer-review


Additive manufacturing offers the advantage of infinite freedom to design and fabricate complex parts at reduced lead-time. However, the surface quality of additively manufactured parts remains well behind the conventionally processed counterparts. This paper aims to systematically investigate the impact of varying surface inclination angles with respect to the build direction on the resultant surface textures. A bespoke metal truncheon artefact with inclination angles varying from 0° to 180° was built by selective laser melting. Focus variation microscopy was used to measure the topography of inclined surfaces with the tilt angle up to 132°. The measurement data was then analyzed to characterize the staircase effect and the particles adherent to the artefact surface. Areal surface texture parameters, including height parameters, spatial parameters, functional parameters, and feature parameters, were explored to quantify the general surface topography, the staircase case effect, and the particle features. The areal surface texture characterization and particle analysis reveal the resulted surface topographies are strongly correlated with the surface inclination angles.
Original languageEnglish
Article number051106
Number of pages17
JournalJournal of Tribology
Issue number5
Early online date29 Mar 2021
Publication statusE-pub ahead of print - 29 Mar 2021

Fingerprint Dive into the research topics of 'Surface Texture Characterization of Metal Selective Laser Melted Part with Varying Surface Inclinations'. Together they form a unique fingerprint.

Cite this