(1) The hot forging process of spiral bevel gear blank is completed at high temperature, and the metallographic structure of metal will change at high temperature. At the same time, the spiral bevel gear blank also needs heat treatment after forging. This paper can be combined with the change of metallographic structure in the forging process and the heat treatment after forging for further research.
(2) The metal flow law in the forging process of spiral bevel gear blank was studied, and the effects of die structure, different initial forging temperature and friction coefficient on the forming effect were studied. However, due to many factors not considered, such as the change of metallographic structure in the forging process mentioned above, the specific optimization design of die structure is not carried out, and the optimal initial forging temperature and friction coefficient are not determined. Instead, the influence of die structure, initial forging temperature and friction coefficient on forming effect is qualitatively studied, It is verified that the numerical simulation method can be used to optimize the die structure. This paper can also make further research on the specific optimization design of die structure, determining the optimal initial forging temperature and friction coefficient.
(3) A spinning device is designed to replace the original free forging process. The geometric modeling of the spinning device is carried out, and the spinning process is numerically simulated and analyzed. However, the spinning device has not been drawn, the physical object of the spinning device has not been manufactured, the physical simulation has not been carried out, and the optimal roller rotation speed and spiral bevel gear blank feed speed have not been determined. In terms of spinning device design and numerical simulation, I have only done preliminary research, and there is still a lot of work to be further studied.