Method for processing internal spline of blind hole on end face of cylindrical shaft

The invention belongs to a machining technology, and relates to an improved method for processing the internal spline of a blind hole on the end face of a cylindrical shaft. The method is characterized by comprising the following steps of: processing a technical blind hole on the end face of the cylindrical shaft; manufacturing an internal spline bushing; press-installing the internal spline bushing; and locking the binding face between the internal spline bushing and the technical blind hole of the cylindrical shaft. With the method, no cutter relieving and chip groove is arranged in the blind hole on the end face, the qualification rate of the processed internal spline of the blind hole is high, and the processing cost is low.