Abstract
The use of magnetorheological fluids for finishing is one of the most promising smart processes for the fabrication of ultra-fine surfaces, particularly three-dimensional millimeter or micrometer structures. This process is not readily applicable to hard-surface materials, like an Al2O3-TiC hard disk slider, if a conventional rotating tool is used. This is due to the rotational speed and the resulting actual impressed abrasion energy limits, and the consequent low efficiency of the material removal rate. In this study, the main mechanism responsible for the decrease of the material removal rate on hard materials for a wheel-type magnetorheological finishing process is examined, both theoretically and experimentally, and a solution to this problem is devised via two approaches. The first uses a rectilinear alternating motion to improve processing conditions, and the second focuses on the use of more effective abrasives, namely magnetizable abrasives made of iron powders sintered with carbon nanotubes, which are new abrasives that have not yet been introduced in the field of surface finishing. Furthermore, it is shown that these abrasives increase the lifetime of consumables (magnetorheological fluid and abrasives) and the material removal rate.
| Original language | English |
|---|---|
| Pages (from-to) | 407-418 |
| Number of pages | 12 |
| Journal | International Journal of Machine Tools and Manufacture |
| Volume | 49 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2009 Apr 1 |
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All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Industrial and Manufacturing Engineering
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Magnetorheological finishing process for hard materials using sintered iron-CNT compound abrasives. / Jung, Bongsu; Jang, Kyung In; Min, Byung Kwon; Lee, Sang Jo; Seok, Jongwon.
In: International Journal of Machine Tools and Manufacture, Vol. 49, No. 5, 01.04.2009, p. 407-418.Research output: Contribution to journal › Article
TY - JOUR
T1 - Magnetorheological finishing process for hard materials using sintered iron-CNT compound abrasives
AU - Jung, Bongsu
AU - Jang, Kyung In
AU - Min, Byung Kwon
AU - Lee, Sang Jo
AU - Seok, Jongwon
PY - 2009/4/1
Y1 - 2009/4/1
N2 - The use of magnetorheological fluids for finishing is one of the most promising smart processes for the fabrication of ultra-fine surfaces, particularly three-dimensional millimeter or micrometer structures. This process is not readily applicable to hard-surface materials, like an Al2O3-TiC hard disk slider, if a conventional rotating tool is used. This is due to the rotational speed and the resulting actual impressed abrasion energy limits, and the consequent low efficiency of the material removal rate. In this study, the main mechanism responsible for the decrease of the material removal rate on hard materials for a wheel-type magnetorheological finishing process is examined, both theoretically and experimentally, and a solution to this problem is devised via two approaches. The first uses a rectilinear alternating motion to improve processing conditions, and the second focuses on the use of more effective abrasives, namely magnetizable abrasives made of iron powders sintered with carbon nanotubes, which are new abrasives that have not yet been introduced in the field of surface finishing. Furthermore, it is shown that these abrasives increase the lifetime of consumables (magnetorheological fluid and abrasives) and the material removal rate.
AB - The use of magnetorheological fluids for finishing is one of the most promising smart processes for the fabrication of ultra-fine surfaces, particularly three-dimensional millimeter or micrometer structures. This process is not readily applicable to hard-surface materials, like an Al2O3-TiC hard disk slider, if a conventional rotating tool is used. This is due to the rotational speed and the resulting actual impressed abrasion energy limits, and the consequent low efficiency of the material removal rate. In this study, the main mechanism responsible for the decrease of the material removal rate on hard materials for a wheel-type magnetorheological finishing process is examined, both theoretically and experimentally, and a solution to this problem is devised via two approaches. The first uses a rectilinear alternating motion to improve processing conditions, and the second focuses on the use of more effective abrasives, namely magnetizable abrasives made of iron powders sintered with carbon nanotubes, which are new abrasives that have not yet been introduced in the field of surface finishing. Furthermore, it is shown that these abrasives increase the lifetime of consumables (magnetorheological fluid and abrasives) and the material removal rate.
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UR - http://www.scopus.com/inward/citedby.url?scp=60949098089&partnerID=8YFLogxK
U2 - 10.1016/j.ijmachtools.2008.12.002
DO - 10.1016/j.ijmachtools.2008.12.002
M3 - Article
AN - SCOPUS:60949098089
VL - 49
SP - 407
EP - 418
JO - International Journal of Machine Tools and Manufacture
JF - International Journal of Machine Tools and Manufacture
SN - 0890-6955
IS - 5
ER -