By using the moment area method, the deformation of the bevel gear blank when machining the tooth groove in the middle of the bevel gear blank is obtained. In the finite element analysis of the bevel gear blank, it can be seen that the calculated result is the average deformation of the local maximum deformation area of the bevel gear blank. As shown in the figure, during processing, the deformation of the middle position of the bevel gear split wheel blank is large, and the deformation of the part away from the middle position of the bevel gear wheel blank is obviously small. After the bevel gear wheel blank is deformed, the bottom state of the unprocessed area tends to be straight, rather than the whole bevel gear wheel blank is in a bending state.

When machining multiple slots, the stress distribution of bevel gear blank is difficult to be obtained by analysis and calculation, so the torque area method can not be used to directly calculate the deformation of multiple slots. However, the moment area method can obtain the deformation of bevel gear when dividing the wheel blank and machining the tooth grooves at different positions separately, and then add these deformations according to the obtained deformation characteristics to analyze the deformation of bevel gear dividing the wheel blank.