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	 Rapid Generation of Surface Dimples Using End Milling
    Shinichi Kogusu*, Takakazu Ishimatsu**, and Yasuhiko Ougiya**
 *Industrial Technology Center of Nagasaki, 2-1303-8, Ikeda, Omura, Nagasaki 856-0026, Japan
**Dept. of Mechanical Systems Eng., Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
    
    
Received:February 13, 2007Accepted:June 4, 2007Published:September 5, 2007    
	
    
    
Keywords:structured surfaces, machining center, oval-end mill, dimple texture	
	Abstract	
    Structured surfaces on metal are often employed to enhance lubricating  features, reduce the hydrodynamic drag force along wings and also decorate  the metal surfaces for architectural ornament. It is important to note that  only horizontal movements of a ball-end mill at high feed speed generate the  indented surface on metal surfaces. In this paper we propose a technique to  estimate the dimples generated on the metal surfaces using a machining  center with an oval-end mill. Firstly, a technique to simulate the  generating process of the dimples with the machining center is explained.  The technique is effective in forecasting the geometry of the dimples with  accuracy. Secondly, a technique to determine the cutting condition to  generate the desired dimpled surface is proposed. The design specifications  of the dimpled surface are the geometry of the dimples and the spacing  between the dimples. The proposed technique was successfully used to  decorate a metal surface.		
	
	
    
    Cite this article as:S.  Kogusu, T.  Ishimatsu, and Y.  Ougiya, “Rapid Generation of Surface Dimples Using End Milling,” Int. J. Automation Technol., Vol.1 No.1, pp. 45-51, 2007.Data files: