- Research overview of spiral bevel gear forging at home and abroad and the application of numerical simulation technology in spiral bevel gear forging.
- Relevant theoretical knowledge of forging numerical simulation.
- The content includes the process design and optimization of cross wedge rolling at the rod, the simulation of cross wedge rolling steps, the establishment of finite element geometric model, the design of reasonable cross wedge rolling die and simulation parameters, the analysis of metal flow law and stress-strain analysis in the rolling process, and the conclusion of reasonable ties, so as to make full preparations for the subsequent closed die forging.
- Die forging die design and optimization of composite forgings, mainly including:(1) Upsetting process design and optimization；The upsetting process is simulated and analyzed by finite element method, the reasonable upsetting range is designed, the optimal upsetting diameter range is obtained, and the metal flow law and deformation characteristics in the upsetting process are analyzed, so as to prepare for the pre stage step of spiral bevel gear blank. (2) Design and optimization of pre forging process；The finite element simulation analysis of the end pre forging of the driven spiral bevel gear blank and the driving spiral bevel gear blank is carried out, the metal flow law and deformation characteristics in the forming process are obtained, the reasonable pre forging die chamber is designed, the metal volume is pre distributed reasonably, and the reasonable process parameters are obtained, so as to prepare for the final forging of the spiral bevel gear blank. (3) Design and optimization of final forging process；The finite element simulation analysis of the forging forming after pre forging is carried out, the metal flow law and deformation characteristics in the final forging forming process are obtained, the die load curve is analyzed, compared with the theoretical calculation results, the reasonable process parameters are obtained, and the quality of the forging is tested by various means.
- The forging process of driving and driven spiral bevel gear blank of automobile rear axle is compared and analyzed. Through the analysis and comparison, it is concluded that this composite forming process can effectively improve the production efficiency and effectively save raw materials.