As an important transmission part, the driven spiral bevel gear of automobile rear axle bears a large load, so the parts are very easy to be worn. In order to ensure the long-term stable and safe operation of the vehicle, the driven spiral bevel gear blank must have high quality accuracy and performance requirements.
For a long time, spiral bevel gear blank has a variety of forming processes. Through detailed and in-depth analysis and comparison of the advantages and disadvantages of various processes, a forming process will be finally selected to meet the requirements of spiral bevel gear blank and meet many conditions such as high production efficiency, low investment cost, low labor intensity and good production environment. At present, there are three forming processes for the driven spiral bevel gear blank of automobile rear axle: one is die forging process; Second, ring rolling forming; Third, swing rolling.
By comparing various forming processes of spiral bevel gear blank, closed die forging and ring rolling processes are selected as the basic research processes. At the same time, the basic conditions and process parameters of ring rolling process are briefly introduced, and the basic theory of ring rolling process of spiral bevel gear blank is understood, which lays a foundation for the design of ring rolling die of spiral bevel gear blank.