Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/88016
Title: Laser polishing of additive manufactured Ti alloys
Authors: Ma, C. P.
Guan, Y. C.
Zhou, Wei
Keywords: Laser Polishing
Additive Manufacturing
Issue Date: 2017
Source: Ma, C. P., Guan, Y. C., & Zhou, W. (2017). Laser polishing of additive manufactured Ti alloys. Optics and Lasers in Engineering, 93, 171-177.
Series/Report no.: Optics and Lasers in Engineering
Abstract: Laser-based additive manufacturing has attracted much attention as a promising 3D printing method for metallic components in recent years. However, surface roughness of additive manufactured components has been considered as a challenge to achieve high performance. In this work, we demonstrate the capability of fiber laser in polishing rough surface of additive manufactured Ti-based alloys as Ti-6Al-4V and TC11. Both as-received surface and laser-polished surfaces as well as cross-section subsurfaces were analyzed carefully by White-Light Interference, Confocal Microscope, Focus Ion Beam, Scanning Electron Microscopy, Energy Dispersive Spectrometer, and X-ray Diffraction. Results revealed that as-received Ti-based alloys with surface roughness more than 5 µm could be reduce to less than 1 µm through laser polishing process. Moreover, microstructure, microhardness and wear resistance of laser-polished zone was investigated in order to examine the thermal effect of laser polishing processing on the substrate of additive manufactured Ti alloys. This proof-of-concept process has the potential to effectively improve the surface roughness of additive manufactured metallic alloy by local polishing method without damage to the substrate.
URI: https://hdl.handle.net/10356/88016
http://hdl.handle.net/10220/44509
ISSN: 0143-8166
DOI: 10.1016/j.optlaseng.2017.02.005
Rights: © 2017 Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Optics and Lasers in Engineering, Elsevier Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.optlaseng.2017.02.005].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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