The fixed grinding speed vs = 20.3 M / s and the spiral bevel gear speed VW = 1200 mm / min are tested under different grinding depths AP. The influence of grinding depth on grinding force is shown in the figure.
It can be seen from the figure that the normal grinding force and tangential grinding force gradually increase with the increase of grinding depth. The grinding depth of spiral bevel gear has a great influence on the material removal rate in the grinding process. With the increase of grinding depth, the number of effective abrasive particles involved in grinding increases, the contact arc length between the grinding wheel and the spiral bevel gear increases, and the amount of material removed per unit time increases accordingly. Therefore, the resistance required to produce chips increases, and the friction between the abrasive particles and the surface of the spiral bevel gear also increases. These factors together lead to the increase of normal grinding force and tangential grinding force when the grinding depth increases.