Abstract
This article examines the tribological properties of a magnetorheological (MR) fluid in a finishing process. The MR fluid under investigation contains about 85 wt% of micro-sized carbonyl iron (CI) particles and about 15 wt% of water and surfactant(s) compound. A semi-empirical material removal model is proposed for the description of the tribological behavior of the MR fluid in the finishing process by considering both the solid-and fluid-like characteristics of the fluid in a magnetic field. Additionally, Archard's theory and Amonton's law of friction are applied to the model, which is completed by experimental efforts to identify the relationship between the effective friction coefficient and the ratio of the interfacial particle velocity to the imposed pressure on the workpiece surface. It turns out that the effective friction coefficient has a linear relationship with this ratio. The validity of the proposed model is supported through material removal rate measurements. It is also shown that the proposed model is substantially different from the conventional Preston equation in that the material removal rate is not only a function of the product of the applied normal pressure and relative velocity, but it also strongly depends on the square of the relative velocity.
| Original language | English |
|---|---|
| Pages (from-to) | 460-469 |
| Number of pages | 10 |
| Journal | Tribology Transactions |
| Volume | 52 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2009 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Surfaces and Interfaces
- Surfaces, Coatings and Films
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Tribological properties of a magnetorheological (MR) fluid in a finishing process. / Seok, Jongwon; Lee, Seong Oh; Jang, KYUNG IN; Min, Byung Kwon; Lee, Sang Jo.
In: Tribology Transactions, Vol. 52, No. 4, 01.12.2009, p. 460-469.Research output: Contribution to journal › Article
TY - JOUR
T1 - Tribological properties of a magnetorheological (MR) fluid in a finishing process
AU - Seok, Jongwon
AU - Lee, Seong Oh
AU - Jang, KYUNG IN
AU - Min, Byung Kwon
AU - Lee, Sang Jo
PY - 2009/12/1
Y1 - 2009/12/1
N2 - This article examines the tribological properties of a magnetorheological (MR) fluid in a finishing process. The MR fluid under investigation contains about 85 wt% of micro-sized carbonyl iron (CI) particles and about 15 wt% of water and surfactant(s) compound. A semi-empirical material removal model is proposed for the description of the tribological behavior of the MR fluid in the finishing process by considering both the solid-and fluid-like characteristics of the fluid in a magnetic field. Additionally, Archard's theory and Amonton's law of friction are applied to the model, which is completed by experimental efforts to identify the relationship between the effective friction coefficient and the ratio of the interfacial particle velocity to the imposed pressure on the workpiece surface. It turns out that the effective friction coefficient has a linear relationship with this ratio. The validity of the proposed model is supported through material removal rate measurements. It is also shown that the proposed model is substantially different from the conventional Preston equation in that the material removal rate is not only a function of the product of the applied normal pressure and relative velocity, but it also strongly depends on the square of the relative velocity.
AB - This article examines the tribological properties of a magnetorheological (MR) fluid in a finishing process. The MR fluid under investigation contains about 85 wt% of micro-sized carbonyl iron (CI) particles and about 15 wt% of water and surfactant(s) compound. A semi-empirical material removal model is proposed for the description of the tribological behavior of the MR fluid in the finishing process by considering both the solid-and fluid-like characteristics of the fluid in a magnetic field. Additionally, Archard's theory and Amonton's law of friction are applied to the model, which is completed by experimental efforts to identify the relationship between the effective friction coefficient and the ratio of the interfacial particle velocity to the imposed pressure on the workpiece surface. It turns out that the effective friction coefficient has a linear relationship with this ratio. The validity of the proposed model is supported through material removal rate measurements. It is also shown that the proposed model is substantially different from the conventional Preston equation in that the material removal rate is not only a function of the product of the applied normal pressure and relative velocity, but it also strongly depends on the square of the relative velocity.
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UR - http://www.scopus.com/inward/citedby.url?scp=77953926045&partnerID=8YFLogxK
U2 - 10.1080/10402000802687932
DO - 10.1080/10402000802687932
M3 - Article
AN - SCOPUS:77953926045
VL - 52
SP - 460
EP - 469
JO - Tribology Transactions
JF - Tribology Transactions
SN - 1040-2004
IS - 4
ER -