Transactions of Materials and Heat Treatment

Title：Analysis and experimental verification of gear billet precision forging process based on Deform-3D

Authors： Chen Baoshan1 Lu Yunjie2

Unit： 1.School of Mechatronics and Automotive Engineering Puyang Vocational and Technical College 2.Puyang Institute of Technology Henan University

KeyWords： gear billet open die forging closed die forging height-to-diameter ratio of billet forming force

ClassificationCode：TG316

year,vol(issue):pagenumber：2023,48(12):18-24

Abstract：

For the problems of poor quality and low precision of gear billet casting production and low material utilization rate and low efficiency of machining production, the forging process was proposed to replace them. Then, two forging processes for gear billet were designed, namely open die forging and closed die forging, and they were simulated by rigid plastic finite element method, respectively. The results show that for open die forging, when the height-to-diameter ratio of billet is between 0.23 and 0.53, a complete and defect-free gear billet can be obtained, and when the height-to-diameter ratio is 0.53, the forming force is smaller. For closed die forging, when the height-to-diameter ratio of the billet is between 0.17 and 0.49, a complete and defect-free gear billet can be obtained, and when the height-to-diameter ratio is 0.49, the forming force is smaller. By comparison, the open die forging has lower forming force and longer life of forging die, while the closed die forging has higher material utilization rate, lower risk of cracking for forgings, and better quality of forgings. Finally, the good-quality gear billet forgings are obtained by process experiments, which verifies the accuracy of the simulation results.

Funds：

作者简介：陈保山（1983-），男，硕士，讲师 E-mail：baoshan198302@163.com

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