Grinding Parameter Optimization of Ultrasound-Aided Electrolytic in Process Dressing for Finishing Nanocomposite Ceramics

Table 3

Conditions of experiment.

Parameters	Conditions
Wheel truing	Voltage: 120 V; duty ratio: 5 μs : 5 μs; wheel speed: 1000 r/min
Wheel sharpening	Truing wheel speed: 1000 r/min; voltage: 120 V; duty ratio: 5 μs : 5 μs; electrode gap: 1 mm; wheel speed: 1000 r/min
Workpieces	Nano-zirconia toughened alumina nanocomposite ceramic, outer diameter: Φ60 mm, inner diameter: Φ35 mm, height: 40 mm
Diamond wheel	Diameter: 25 mm, height: 17 mm, particle size: 280#, cast iron bond, concentration: 100%
Wheel speed	1.3 m/s, 2.6 m/s, 3.9 m/s, 5.2 m/s
Workpiece speed	0.28 m/s, 0.37 m/s, 0.43 m/s, 0.5 m/s
Axial feed velocity	60 mm/min, 80 mm/min, 100 mm/min, 120 mm/min
Grinding depth	1 μm/pass, 3 μm/pass, 5 μm/pass, 7 μm/pass
Grinding fluids	Ratio of mother liquor to distilled water: 1 : 50
Special power supply voltage	90 V
Duty ratio	5 μs : 5 μs
Interelectrode gap	0.3 mm
Ultrasonic parameters	Frequency: 34.835 kHz, amplitude: 10 μm

“#” is the grain size unit of Japan.