Paint removal process of high-speed motor train unit wheel pair

The invention discloses a paint removal process of a high-speed motor train unit wheel pair, which solves the problems that the prior paint removal process cannot clean off paint coats of protective paint on the axle body of an axle of the motor train unit wheel pair, so that the maintenance process can not normally carry out. The paint removal process comprises the following steps: lifting the motor train unit wheel pair onto a common horizontal lathe and positioning the motor train unit wheel pair by using three catch chucks; connecting a cup-shaped blade (8) of radius brass material with a long knife handle (7), fixing the cup-shaped blade (8) on a knife rest (6) of the horizontal lathe and setting the rotating speed of the common horizontal lathe into 40 turns/minute; firstly carrying out lathe turning from a shaft section between a left wheel on the left side of the wheel pair and a left brake wheel, cutting from the position of a chamfer edge (1) of the axle body, carrying out lathe turning in sequence