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Characterization of Laser Powder Bed Fusion Surfaces for Heat Transfer Applications

Published

Author(s)

Jason Fox, Christopher Evans, Kuldeep Mandloi

Abstract

Imperative to the adoption of additive manufacturing for heat transfer applications is the understanding of as-built surface texture. In this work we analyze surface height data to determine the effect of build angle. Surface data is analyzed using existing and novel techniques and results are interpreted with respect to potential impact on heat transfer efficiency. Results show that complexity in the scan strategy of the build lead to difficulties developing correlation to existing techniques. Particles are also segmented from the surface and analysis of position show relationship to surface build angle, which may create stagnation points that detriment heat transfer.
Citation
CIRP Annals-ManufacturingTechnology
Volume
70

Keywords

additive manufacturing, laser powder bed fusion, surface metrology, power spectrum density, area scale analysis, segmentation

Citation

Fox, J. , Evans, C. and Mandloi, K. (2021), Characterization of Laser Powder Bed Fusion Surfaces for Heat Transfer Applications, CIRP Annals-ManufacturingTechnology, [online], https://doi.org/10.1016/j.cirp.2021.04.032, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=931730 (Accessed April 18, 2024)
Created June 11, 2021, Updated February 23, 2022