CNC contour diamond roll dressing.
CNC contour diamond roll dressing is the one way that thread grinding can be fully automated. A precision diamond roll can be used to create the exact thread-form profile on the grinding disc, using a continuous path movement and holding tolerances in the tens of millionths. Automatic dressing assures that the wheel is properly shaped and sharpened at all times. Frequency of dressing depends on such factors as the surface finish needed, wheel type and removal rate.