As a basic part, spiral bevel gear is widely used in the machinery industry and is in great demand, but it is still processed by traditional cutting technology, with low material utilization and poor product quality. In view of this situation, the research purpose is to develop a new precision forging process of spiral bevel gear, simulate the precision forging process of spiral bevel gear through finite element simulation technology, and determine the optimal forming process parameters, so as to improve product quality, reduce production cost and promote the development of gear forming technology.
1) The structural characteristics of forging die and the design of typical forging die are summarized.
2) Aiming at the problems of open die forging of spiral bevel gear, a new precision forging process of spiral bevel gear is developed, and the precision forging die without flash is designed.
3) The mathematical models for solving the forging forming force of open die forging and non flash die forging of spiral bevel gear are established by using the combination method of principal stress and upper bound and deformation work method.
4) The main working parts of spiral bevel gear and precision forging die without flash are modeled in three dimensions.
5) The forming process of spiral bevel gear without flash is numerically simulated, the metal flow law in the forming process is studied, the distribution of velocity field, strain field, stress field and temperature field and the relationship between load and stroke are analyzed, and the forging deformation force required for forming is obtained and compared with the theoretical analysis results.
6) Through numerical simulation technology, the influence of various process parameters on the precision forging process of spiral bevel gear is studied, and the optimal process parameters are determined.