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Technical Brief

Experimental Investigation of the Relationship Between Lubricants' Tribological Properties and Their Lubricating Performances in Cold Rolling

[+] Author and Article Information
Jianlin Sun

School of Materials Science and Engineering,
University of Science and Technology Beijing,
30 Xueyuan Road,
Haidian District,
Beijing 100083, China
e-mail: sjl@ustb.edu.cn

Meirong Yi, Qiao Sun

School of Materials Science and Engineering,
University of Science and Technology Beijing,
30 Xueyuan Road,
Haidian District,
Beijing 100083, China

Mingyu Lu

West Virginia University Institute of Technology,
Montgomery, WV 25136

1Corresponding author.

Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received January 18, 2013; final manuscript received January 23, 2014; published online March 25, 2014. Assoc. Editor: Zhong Min Jin.

J. Tribol 136(3), 034502 (Mar 25, 2014) (4 pages) Paper No: TRIB-13-1024; doi: 10.1115/1.4026886 History: Received January 18, 2013; Revised January 23, 2014

In this paper, three lubricants are tested by a four-ball tribo-tester and in a cold rolling process. Our experimental results show that the data from the four-ball tests and the cold rolling tests are generally consistent with each other, implying the tribological properties measured by a four-ball tribo-tester are able to indicate the lubricants' lubricating performance in cold rolling reasonably well. Nevertheless, our experimental results also reveal certain discrepancies between the data from the four-ball tests and cold rolling tests. Especially, the friction coefficients from the four-ball tests are always considerably smaller than their counterparts from the cold rolling tests. Based on our analysis, the friction coefficients measured by cold rolling tests appear to be a more reliable indicator for the lubricants' performance in cold rolling than the friction coefficients measured by the four-ball tests.

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Figures

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Fig. 1

The schematic drawing of measuring the friction coefficient by the forward slip method

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Fig. 2

Optical micrographs of the wear scars on steel balls with three lubricants: (a) no additive, (b) additive SCO, and (c) additive BECN

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Fig. 3

The average rolling force measured in cold rolling tests with three lubricants

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Fig. 4

Rolling forces with three lubricants: (a) no additive, (b) additive SCO, and (c) additive BECN

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