DETERMINATION OF THE ANGLE ORIENTATION ABRASIVE GRAIN ABOUT VECTOR CUTTING SPEED ON THE round external and internal grinding

S.N. Nizhnik

The intensity and character of the contact processes are strongly influenced by such kinematic and geometrical parameters of the formation as the position and orientation of grain during grinding. We formulate the problem of the need to study changes in the magnitude and direction of the absolute velocity of the cutting abrasive grain, and grain orientation angle of cutting relative to the cutting speed. The expressions that were obtained allows us to determine the variation of cutting speed and changes within the contact angle of abrasive grain with the surface being treated parts. Our studies make it possible to predict the effectiveness of the abrasive tool with a circular outer and inner surfaces of grinding parts.

Key words: wear of grain, cutting speed, angle orientation, top of grain, abrasive grain, prediction, surface of workpiece.