▎ 摘　　要

NOVELTY - The manufacturing method for improving wear resistance of ultrasonic motor rotors, involves selecting titanium alloy as rotor material, where the oxide composite coating comprises 0-5 %mass graphene and 0-3 %mass carbon nanotubes. USE - Method for improving wear resistance of ultrasonic motor rotor. ADVANTAGE - The method is simple, stable and reliable, and effectively improves the wear resistance of rotor, so as to reduce the generation of ultrasonic motor interface abrasive dust, and improve the stability and service life of ultrasonic motor interface. Since graphene and carbon nanotubes are doped in micro-arc oxidation tank liquid, the ceramic composite coating formed in the oxidation process enhances the heat conductivity, increases the abrasion resistance and thermal conductivity of composite coating after oxidation. The friction material is adhered on the stator tooth, thereby avoiding problem of stator teeth sinking caused by long time, and effectively avoids the problems that ultrasonic motors are difficult to start or friction surface abrasion caused by multiple starting and stopping.