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Viscous Layer Formation in Electrochemical Polishing Laser-Powder Bed Fusion Parts with Different Surface Profiles

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter (peer-reviewed) › peer-review

Published
Publication date30/07/2023
Host publicationSpringer Tracts in Additive Manufacturing: Proceedings of CASICAM 2022
EditorsKhalid Zarbane, Zitouni Beidouri
Place of PublicationCham
PublisherSpringer Nature
Pages219-228
Number of pages10
ISBN (electronic)9783031329272
ISBN (print)9783031329265
<mark>Original language</mark>English
EventThe Second Casablanca International Conference on Additive Manufacturing - National Higher School of Electricity and Mechanics (ENSEM), Casablanca, Morocco
Duration: 23/11/2022 → 24/11/2022
http://www.casicam.com/

Conference

ConferenceThe Second Casablanca International Conference on Additive Manufacturing
Abbreviated titleCASICAM'22
Country/TerritoryMorocco
CityCasablanca
Period23/11/22 → 24/11/22
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Publication series

NameSpringer Tracts in Additive Manufacturing
PublisherSpringer Nature Switzerland AG
ISSN (Print)2730-9576
ISSN (electronic)2730-9584

Conference

ConferenceThe Second Casablanca International Conference on Additive Manufacturing
Abbreviated titleCASICAM'22
Country/TerritoryMorocco
CityCasablanca
Period23/11/22 → 24/11/22
Internet address

Abstract

The viscous layer generated on the anode surface during electrochem-ical polishing is essential for obtaining a smooth, mirror-like surface. However, the growth of the viscous layer for polishing Laser-Powder Bed Fusion (L-PBF) components with rough surface features of several hundred microns in height and wavelength differs from the micron/nanoscale surface finish. This study employed a Spatial Frequency Method to model rough L-PBF surfaces. The effect of height and frequency distribution parameters on the viscous layer thickness, geometry and uniformity was numerically investigated. NaCl-Ethylene Glycol-Ethanol and commercial A2 electrolytes were utilised to polish L-PBF 316L stainless steel for verification purposes. The results show that the viscous layer of the high-frequency surfaces is more homogeneous than the low-frequency surfaces, and the roughness reduction can reach 97.6% compared to 64% for the low-frequency surfaces.