Transactions of Materials and Heat Treatment

Title：Numerical simulation on forging process of spiral bevel gear and mold deformation law

Authors： Li Xinrui Xing Biao Guan Yanjin Ren Qihua Du Xiaoxiao Ji Baohua

Unit： Shandong University Shandong Wenling Precision Forging Technology Co. Ltd.

KeyWords： spiral bevel gear forging sprial angle die tooth profile helix

ClassificationCode：TG316.3

year,vol(issue):pagenumber：2020,45(9):16-21

Abstract：

In order to improve the manufacturing precision and economic benefit of spiral bevel gear forging process and provide guidance for process formulation and mold design, based on the existing forming equipment in the factory, the forging process of spiral bevel gear with large modulus including blanking, upsetting and punching compound, ring rolling and final forging was presented, and the evolutions and distribution laws of physical fields, such as stress and strain in the process of final forging were obtained through the numerical simulation by finite element method to verify the feasibility of forging technology. Then, the inhomogeneous elastic deformation condition of mold tooth profile was analyzed by the numerical simulation, which provided guidance for process formulation and mold design. The results show that the uneven deformation of tooth profile lower mold occurs under the thermo-mechanical coupling, the height of tooth profile for lower mold reduces, the spiral angle of helix midpoint decreases, and the shape of tooth profile narrows, which has a significant influence on the forming accuracy of gear tooth profile.

Funds：

山东省重点研发计划项目（2019GGX104067）

李心蕊（1996-），女，硕士研究生 E-mail：xinrui_sdu@163.com 通讯作者：管延锦（1969-），男，博士，教授，博士生导师 E-mail：guan_yanjin@sdu.edu.cn

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