The hollow shaft (see Fig. 1) is characterized by a large inner diameter, a thin wall thickness, a radial deformation, and a high dimensional accuracy and shape tolerance. Central axis machining process: rough car, drill inner hole, heat treatment, inner hole, semi-finished car, fine outer circle and coarse and fine grinding outer circle. In the process of processing, due to the large size of parts and processing equipment, etc. Easy to cause shaft
Repair hollow shaft roundness