Effect of composite microtextures on the tribological properties of triangular guide rails

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-09-02 DOI:10.1108/ilt-05-2024-0183

Kexin Ma, Jianxin Deng, Yichen Bao, Zhihui Zhang, Junyan Wang

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引用次数: 0

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/

查看原文本刊更多论文

复合微质料对三角导轨摩擦学特性的影响

目的采用液体辅助激光表面纹理技术在三角形导轨表面制造复合微纹理，以增强其摩擦学特性。数值模拟结果表明，复合微质料显著增强了流体动压的影响，从而提高了油膜的承载能力。在往复针盘摩擦试验中，微纹理复合材料样品的平均摩擦系数约为 0.136，与抛光样品相比降低了约 17%。在往复摩擦和磨损测试中，使用复合微纹理的三角形导轨在高速和重载条件下的平均系数最低。原创性/价值三角形导轨面临着高摩擦和高磨损，这限制了其在机床导轨等高要求应用中的稳定性。本文针对钢制三角导轨提出了一种新方法，包括复合微纹理、流体数值模拟、液体辅助激光表面纹理和摩擦磨损测试。通过采用复合微纹理，该方法旨在降低摩擦系数并延长导轨使用寿命，从而节约能源并降低维护成本。增强机床导轨的抗摩擦和抗磨损性能对于提高性能和延长使用寿命至关重要。同行评议本文的同行评议记录可在以下网站查阅：https://publons.com/publon/10.1108/ILT-05-2024-0183/。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.