Effects of Laser Surface Texturing and Lubrication on the Vibrational and Tribological Performance of Sliding Contact
Authors
Liu, S
Sai, Q
Wang, S
Williams, J
Publication Date
2022-01-11Journal Title
Lubricants
ISSN
2075-4442
Publisher
MDPI AG
Volume
10
Issue
1
Language
en
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Liu, S., Sai, Q., Wang, S., & Williams, J. (2022). Effects of Laser Surface Texturing and Lubrication on the Vibrational and Tribological Performance of Sliding Contact. Lubricants, 10 (1) https://doi.org/10.3390/lubricants10010010
Abstract
<jats:p>Various textures are fabricated by a picosecond laser machine on the surfaces of circular stainless steel specimens. Vibrational and tribological effects of laser surface textures are investigated by means of a tribometer and a data acquisition and signal processing (DASP) system. Experimental results show that surface textures can reduce the coefficients of friction (COFs), enhance the wear resistance, and improve the dynamical performance of frictional surfaces. In this study, the surface with micro circular dimples in diameter of 150 μm or textured area density of 25% has the best tribological and dynamical performance. Compared with the non-textured surface, the surface with circular dimples in diameter of 150 μm and 15% textured area density has 27% reduction of COFs, 95% reduction of frictional vibrations, and 66% reduction of frictional noise. The frictional vibrations and noise in the sliding contacts can be effectively reduced by adding graphene to the lubrication oil, and the surface textures enhance the frictional noise reduction performance of lubrication.</jats:p>
Keywords
laser surface texturing, noise, vibration, friction reduction, wear resistance, lubrication
Sponsorship
Natural Science Foundation of Shanghai (21ZR1445000)
Science and Technology Commission of Shanghai Municipality (18060502400)
Identifiers
External DOI: https://doi.org/10.3390/lubricants10010010
This record's URL: https://www.repository.cam.ac.uk/handle/1810/333043
Rights
Licence:
https://creativecommons.org/licenses/by/4.0/
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