Experimental study on residual stress in high-speed grinding of noncircular equidistant profile

Abstract

To explore the formation mechanism of residual stress in the high-speed grinding of noncircular equidistant profiles, orthogonal experiments of three grinding parameters—the grinding wheel speed, workpiece speed, and grinding depth—were designed. A ceramic bond CBN grinding wheel was used for the high-speed grinding of noncircular equidistant profile by the X-C axis linkage. The effects of the grinding parameters on the grinding temperature, surface roughness, and residual stress were analyzed. The results show that with the increase of grinding wheel speed, the grinding temperature and residual stress increase, and the surface roughness decreases. With the increase of workpiece speed, the grinding temperature and residual stress decrease, and the surface roughness increases. With the increase of grinding depth, the grinding temperature, residual stress, and surface roughness increase. Besides, the grinding depth has the greatest influence on the residual stress, followed by the grinding wheel speed and workpiece speed.