Fine ceramics ductile-mode

Ductile-Mode Ultra-Smoothness Grinding of Fine Ceramics with Coarse-Grain-Size Diamond Wheels... 

Grinding operation is one of the most effective methods used for hig smoothness machining of fine ceramics. It is difficult, however, to achieve crack-free high smoothness surfaces by ductile-mode grinding because of their mechanical properties of high brittleness [1]. Therefore, it is necessary... 

This chapter introduces that the coarse 140-mesh diamond wheel can be used for ultra-smoothness grinding of fine ceramics. First of all, we discuss that ductile-mode grinding of fine ceramics with the coarse 140-mesh metal-bonded diamond wheel is possible because of the experimental relationship between the table speed and the groimd workpiece smiace. Second, the influence of the speed of the wheel and the workpiece material on ductile-mode grinding is explained. Finally, the newly developed ductile-mode ultra-smoothness grinding method with coarse-grain-size wheel, in which the resultant smiace roughness is below about 10 ran (P-V) and 1 nm (RMS), is introduced. 

As stated above, ductile-mode grinding of fine ceramics is possible with plunge grinding with the coarse 140-mesh grain-size diamond wheel. The 3D surface roughness in ductile-mode plunge grinding, however, is limited... 

Ductile-mode grinding of fine ceramics with the coarse 140-mesh metal-bonded diamond wheel has been shown to be possible in plunge surface grinding. It is estimated that the thermal effect due to the large wear land of the cutting edge on the 140-mesh wheel surface has considerable effect on... 

Yasui, H., Arino, Y., and Matsimaga, K., Ductile-mode high smoothness grinding of fine ceramics by diamond wheel of coarse grain size (1st Report), Journal of the Japan Society for Precision Engineering, Vol. 63, No. 9,1997,1270. 

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