Mirror finish grinding

Ichida, Y. et al.. Mirror finish grinding of silicon nitride ceramics. Proceedings 1st International Conference on New Manufacturing Technology, 1990,317. 

Therefore, BB wheels are recommended for rough grinding. The CIFB wheels that have a thick insulating layer should be used for mirror finish grinding. However, our investigations have shown that CIFB can be used for rough as well as mirror finish grinding. 

Bandyopadhyay, B.P., Ohmori, H., and Takahashi, L, "Ductile Regime Mirror-Finish Grinding of Ceramics with Electrolytic In-Process Dressing (ELID) Grinding," Materials and Manufacturing Processes Journal, Marcel Dekker, Vol. 11, No. 5, 1996, pp. 789-802. 

A mirror surface was achieved on silicon nitride materials when ELID grinding was performed using a 4000 grit-size wheel. The finish ELID technology will find wide application in the optical and semiconductor industries such as mirror finishing of silicon wafers, many kinds of ceramics, ferrite, and glass. 

The application of a cBN single crystal for precise cutting of hard steel has been reported, indicating that the cBN crystal can make mirror-finished surfaces of a steel material, eliminating further grinding processes (343). However, the cBN crystal was severely worn and practical applications for machining of hard steel appear to be difficult because of the lack of endurance of the tool. 

ELID double-side grinding can be employed to produce mirror-like surface finish. 

Grinding materials for which mirror-like finish carmot be obtained through constant feed grinding... 

ELID-lap grinding of silicon with JK 4000 wheel outputs a mirror-like finish at roughness of 3.8 nm, as compared with 7.4 nm roughness outputted by a conventional lap-grinding. 

Mirror-like surface finish was obtained after grinding with 4000 mesh size wheel (see Figure 9.16 and Figure 9.17). 

Mirror-like surface finish is strongly dependent on the grinding direction the grinding at 90°C with respect to fiber direction permits the best results. 

Mirror-like finish is accompanied by a homogenization mechanism by grinding heat and chip smearing. 

Surface finish of the work chamber need not be rated 3 and above, or "mirror," for applications which are not considered to be critical cleaning. Such finishes are produced by grinding. The so-called "2B" finish, produced by cold rolling, is a cost-effective choice for most solvent cleaning operations. 

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