Ultra-smoothness grinding method

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. 

Ultra-smoothness Grinding 2.3.1 Ultra-smoothness Grinding Method... 

Now, the ultra-smoothness grinding method has been newly devised [5,6]. The schematic of the new method is shown in Figure 2.21. In the method, the workpiece is fed simultaneously toward the directions normal and parallel to the grinding direction. The method is different from the usual traverse surface grinding in which the crossfeed normal to the grinding direction is... 

Microscopic photograph of the HPSC surface ground at (v )c = 3.33 mm/sec with the 140-mesh wheel by ultra-smoothness grinding method [SD140Q50M, Vg = 20 m/sec, ft = 5 pm. Soluble (1/50)]. 

Yasui, H., Development of polishingless ultra-smoothness grinding method (1st Report), Journal of the Japan Society for Precision Engineering, Vol. 69, No. 12, 2003, 1713. 

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