Wang Huajun et al. Simulated the precision forging process of driven spiral bevel gear by finite element method, analyzed its deformation process, expounded the classification of precision forging stage and tooth filling mode of spiral bevel gear, and obtained the calculation formula of forming force of precision forging process of driven spiral bevel gear through experimental research. The results are the same as the simulation results.
Chen Shuwan and others used DEFORM-3D software to simulate the cold block forging process of spiral bevel gear, obtained the cold forging stress-strain distribution law and forming load curve of spiral bevel gear, and predicted the crack area of forging tooth surface; The application of gear precision forging technology at home and abroad is summarized, and the research status and development trend of spiral bevel gear precision forging technology are discussed from the aspects of forming process, metal forming law and dimensional accuracy of forgings.
Feng Wenjie and others used DEFORM-3D software to simulate the forming process of internal split extrusion of spiral bevel gear, and studied the effects of preform cone angle, split gap and split surface position on forming quality and forming force. According to the modified Archard theory, Gao Zhenshan et al. Simulated the die wear of spiral bevel gear hot forging, optimized the design method, analyzed the influence law of various process factors on the die life, determined the optimal process parameters and carried out the forging test. The test results are consistent with the die life estimated by the die life prediction method.
Zhang Xun summarized the process flow and characteristics of precision forging of spiral bevel gear, studied the precision forging process of spiral bevel gear from the aspects of research overview, problems and research methods of precision forging of spiral bevel gear in China, and looked forward to the future trend of this technology. Jin Junsong and others used ANSYS finite element analysis software to study the stress state of the die with plane and non-plane parting surface structure in the precision forging process of spiral bevel gear and the influence of the die structure on it, and optimized the die structure, so as to improve the service life of the die.
Pan WM and others put forward the digital inspection scheme of spiral bevel gear based on the integration of CAD / CAE / CMM, studied its key technologies, accurately modeled the spiral bevel gear according to the manufacturing process, tested the CAD model based on CMM, analyzed the deviation between the actual gear and the CAD model, and optimized the process parameters. Feng Wei and others studied the influence of blank geometry on the cold precision forging process of spiral bevel gear, and designed six different blank geometry structures. The influence of blank geometry on forming load and deformation uniformity is analyzed by using three-dimensional numerical simulation software DEFORM-3D, and the blank geometry is optimized to reduce forming load and improve deformation uniformity.