Transactions of Materials and Heat Treatment

Title：Precision plastic forming of internal spline double gear

Authors： Luo Jing Zhang Jing Huan Siying Yu Haoran

Unit： Engineering Training Center The Engineering & Technical College of Chengdu University of Technology

KeyWords： internal spline double gear plastic forming cold extrusion Deform

ClassificationCode：TG376

year,vol(issue):pagenumber：2022,47(12):103-108

Abstract：

For the special structure of internal spline double gear and its significant forming difficulty, four forming schemes were proposed, and the material flow, the forming mechanism and characteristics, the location and cause of defects of parts were studied by the finite element simulation and analysis in four forming schemes. It was found that scheme 4 had the best comprehensive effect. After further improvement, the final process scheme was formed. The tooth profile formed by this scheme was full, the forming load was small, the process was simple, and there was no forming defect. Based on the above research, the mold structure was designed, and a verification test device was made, which achieved good results in the extrusion forming of billet. The test results are basically consistent with the finite element simulation results, which verifies the accuracy of the finite element simulation, and provides a certain data reference and basis for the precision plastic forming of small-sized double gear type parts.

Funds：

乐山市科技局重点科技计划资助项目（20GZD027）

骆静（1983-），男，硕士，副教授 E-mail：beyondlj996@126.com

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