This paper presents a study of the effect of process parameters on production accuracy obtained through ultrasonic drilling of holes in alumina based ceramics using silicon carbide abrasive. Production accuracy in ultrasonic drilling involves both dimensional accuracy (hole oversize) and form accuracy (out-ofroundness and conicity). The parameters considered are workpiece material, tool material, grit size of the abrasive, power rating and slurry concentration. Taguchi's optimization approach is used to obtain the optimal parameters. The significant parameters are also identified and their effect on oversize, out-of-roundness and conicity are studied. The results obtained are validated by conducting the confirmation experiments.
The effect of process parameters on the cutting ratio (ratio of material removal rate to tool wear rate) for ultrasonic drilling of alumina-based ceramics using silicon carbide abrasive was studied. The parameters considered were workpiece material, tool material, grit size of the abrasive, power rating, and slurry concentration. Taguchi's optimization approach was used to obtain the optimal parameters. The significant parameters were identified and their effects on cutting ratio were studied. The results obtained were validated by conducting confirmation experiments.
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