IJAT Vol.2 No.6 pp. 431-438
doi: 10.20965/ijat.2008.p0431


Experimental Analysis of Chatter Vibration in End-Milling Using Laser Doppler Vibrometers

Heisaburo Nakagawa*, Yutaka Kurita*, Keiji Ogawa*, Yuji Sugiyama**, and Hideyasu Hasegawa***

*The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone-shi, Shiga 522-8533, Japan

**Murata Manufacturing Co., Ltd., 2288 Oshinohara, Yasu-shi, Shiga 520-2393, Japan

***Kawasaki Shipbuilding Corporation
1, Kawasaki-cho, Sakaide, Kagawa 762-8507, Japan

September 1, 2008
October 5, 2008
November 5, 2008
chatter vibration, measurement, end-mill, hardened steel, laser Doppler vibrometer
A problem has emerged during the end-milling of hardened steels: a high frequency chattering phenomenon. On the other hand, a laser Doppler vibrometer has recently been developed to observe such high frequency vibration phenomena. Therefore, we propose a new method of monitoring chattering in the end-milling of hardened steels using laser Doppler vibrometers. The chattering behaviors of the end-mill shank were measured by two laser Doppler vibrometers from the feed and radial directions at the same time during the end-milling of the hardened steel. The following conclusions were reached: (1) Two kinds of chatter vibrations were confirmed as vibration modes whose frequencies differed during high and low cutting speed conditions. (2) The chatter vibrations at the high cutting speeds clearly differed from regenerative chatter, which has only been researched so far, by accurate measurement of chatter vibration modes.
Cite this article as:
H. Nakagawa, Y. Kurita, K. Ogawa, Y. Sugiyama, and H. Hasegawa, “Experimental Analysis of Chatter Vibration in End-Milling Using Laser Doppler Vibrometers,” Int. J. Automation Technol., Vol.2 No.6, pp. 431-438, 2008.
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