Paper Title:
Effect of Electrorheological Fluid Assistance on Micro Ultrasonic Machining
  Abstract

Ultrasonic machining (USM) is an effective machining method for hard brittle materials. In the USM process, the slurry is supplied to the gap between the ultrasonic vibrating tool and the workpiece. Materials are removed by the accumulation of small brittle fractures made by the impacts of abrasive grains. In a previous study, we proposed electrorheological fluid (ER fluid) assisted-USM, and the effect of ER fluid-assisted USM was confirmed practically by machining precise micro-holes and micro-grooves on hard brittle materials. In the present paper, in order to confirm the effect of ER fluid assistance for micro USM in more detail, the behavior of abrasive grains in the machining area is observed. The effect of dielectrophoretic force acts on the abrasive grains and the effect of using ER fluid assistance are investigated. As a result, the abrasive grains can closely approach the micro tool by the effect of dielectrophoretic force and be fixed around the micro tool by the effect of ER fluid assistance. Under these conditions, the workpiece is removed primarily by the accumulation of small brittle fractures, and the chipping can be reduced.

  Info
Periodical
Advanced Materials Research (Volumes 69-70)
Edited by
Julong Yuan, Shiming Ji, Donghui Wen and Ming Chen
Pages
148-152
DOI
10.4028/www.scientific.net/AMR.69-70.148
Citation
T. Tateishi, K. Shimada, N. Yoshihara, J. W. Yan, T. Kuriyagawa, "Effect of Electrorheological Fluid Assistance on Micro Ultrasonic Machining", Advanced Materials Research, Vols. 69-70, pp. 148-152, 2009
Online since
May 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Qin He Zhang, Jian Hua Zhang, J.H. Cheng, C.Q. Zhang, Sheng Feng Ren
406
Authors: Tsuyoshi Kaku, Nobuhito Yoshihara, Ji Wang Yan, Tsunemoto Kuriyagawa, Kazuhiko Abiko, Yoshiharu Mikami, Masahiro Noguchi
Abstract:The viscosity of an electrorheological fluid (ER fluid) increases with an increase in the intensity of an electric field. In the case of ER...
213
Authors: Li Li, Dong Wang, Zong Wei Niu, Zhi Yong Li, Guang Ming Yuan
Abstract:A new kind of ultrasonic machining method named ultrasonic machining aided tool rotation is proposed for sintered NdFeB permanent magnet. In...
420
Authors: Takeshi Tanaka
Abstract:In this study, we proposed an electro-rheological fluid-aided polisher (ERAP) using one-sided, patterned electrodes. The characteristics of...
123
Authors: Hiroki Wakabayashi, Ryo Koike, Yasuhiro Kakinuma, Tojiro Aoyama, Hiroyuki Shimada, Seiji Hamada
Chapter 6: Brittle Material Machining
Abstract:Sapphire is an attractive engineering material for the cover glass of smartphones and wristwatches because of its high hardness and...
247