Effect of composite microtextures on the tribological properties of triangular guide rails
Abstract
Purpose
Liquid-assisted laser surface texturing technology was used to create composite microtextures on triangular guide rail surfaces to enhance their tribological properties.
Design/methodology/approach
Numerical simulations were used to investigate the impact of various microtextures on fluid dynamic lubrication. Reciprocating friction and wear tests, followed by mechanistic analysis, examined the combined tribological effects of microtextured surfaces and lubricants.
Findings
The numerical simulation outcomes reveal a significant augmentation in the influence of fluid dynamic pressure due to composite microtextures, consequently amplifying the load-bearing capacity of the oil film. The average friction coefficient of composite microtextured samples was approximately 0.136 in reciprocating pin-on-disk friction tests, representing approximately 17% decrease compared to polished samples. Triangular guide rails with composite microtextures demonstrated the lowest average coefficient under conditions of high-speed and heavy-loading in the reciprocating friction and wear tests. Additionally, the presence of composite microtextures was found to promote the formation of adsorbed and friction films during friction, potentially contributing to the enhancement of tribological properties.
Originality/value
Triangular guide rails face high friction and wear, limiting their stability in demanding applications like machine tool guideways. This paper proposes a novel approach for steel triangular guide rails, involving composite microtexturing, numerical fluid simulations, liquid-assisted laser surface texturing and friction-wear testing. By implementing composite microtextures, the method aims to reduce friction coefficients and extend guideway service life, thereby saving energy and reducing maintenance costs. Enhancing the antifriction and antiwear properties of machine tool guideways is crucial for improving performance and longevity.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-05-2024-0183/
Keywords
Acknowledgements
This work is supported by the National Natural Science Foundation of China (52275443).
CRediT authorship contribution statement: Kexin Ma: formal analysis, methodology, writing – original draft preparation. Jianxin Deng: supervision, validation, Writing – reviewing and editing. Yichen Bao: writing – reviewing, methodology. Zhihui Zhang: data analysis, writing – reviewing. Junyan Wang: conceptualization.
All authors reviewed the manuscript.
Declaration of competing interest: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Citation
Ma, K., Deng, J., Bao, Y., Zhang, Z. and Wang, J. (2024), "Effect of composite microtextures on the tribological properties of triangular guide rails", Industrial Lubrication and Tribology, Vol. ahead-of-print No. ahead-of-print. https://doi.org/10.1108/ILT-05-2024-0183
Publisher
:Emerald Publishing Limited
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