Liang, Q., Zhou, J., Zhu, S., Xia, Z., Liu, Z.
The choice of cold precision sizing method for cold extrusion gear with big modulus
(2017) Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology), 48 (8), pp. 1995-2001.
归属机构: College of Material Science and Engineering, Chongqing University, Chongqing, 400044, China;
Chongqing Zhonglian Gear Transmission Co. Ltd., Chongqing, 402247, China
摘要: In order to improve gear accuracy in cold precision sizing, an elastic plastic finite element model based on the measurement of extruded gear was built to simulate the cold precision sizing process. The stress and strain distributions of the gear, as well as the stress of toothed die with different methods of cold precision sizing were analyzed by numerical simulation. The rule of influence of cold precision sizing method on gear accuracy was obtained. The experiment of the spur gear cold precision sizing process was conducted and the generated data went through a paired sample t-test for significance analysis. The results show that the accuracy of cold extruded gear improves significantly by sizing only tooth face. The magnitude of tooth profile accuracy increases from 9 to 7 and the magnitude of gear direction precision increases from 10 to 8 after cold precision sizing. Practical results are consistent with the simulation results. © 2017, Central South University Press. All right reserved.
作者关键字: Cold precision sizing; Gear accuracy; Numerical simulation; Spur gear with big modulus
索引关键字: Computer simulation; Elastoplasticity; Numerical methods; Numerical models; Spur gears; Strain, Cold extrusion; Cold precision sizing; Elastic-plastic finite element model; Paired-sample t-test; Significance analysis; Sizing process; Stress and strain distribution; Tooth profile, Finite element method
通讯地址: Zhou, J.; College of Material Science and Engineering, Chongqing UniversityChina; 电子邮件: firstname.lastname@example.org
出版商: Central South University of Technology
来源出版物名称缩写: Zhongnan Daxue Xuebao (Ziran Kexue Ban)