Electrorheological polishing performance of cerium-doped titanium dioxide particles

Electrorheological (ER) polishing as a new type of technique has flexibility and controllability. However, ER cannot be widely used in actual processing because the present fluid is usually prepared by simple mixing abrasive materials into fluid, which easy to occur phase separation decreased performance. This paper develops material based on cerium-doped titanium dioxide. As classic abrasive, cerium oxide not only high performance but also can enhance dioxide doping effect, endows with efficiency compared method. Cerium-doped particles were sol-gel The size, surface morphology elemental distribution characterized. properties tested. effects different concentrations, machining gap, voltage rotation speed studied. Under conditions 0.2 mm 3 kV 200 r/min speed, roughness (Ra) copper workpiece decrease from 136 nm 14.4 after 0.5 h polishing, far higher than mixed fluid.