Transactions of Materials and Heat Treatment

Title：Optimization of locomotive gear forging blank shape based on FE simulation

Authors： Chu Wenping Zhang Lin Wang Leigang

Unit： Jiangsu University

KeyWords： locomotive gear blank shape golden cut method FE simulation

ClassificationCode：TG316

year,vol(issue):pagenumber：2014,39(5):13-18

Abstract：

During forming process of locomotive gear forgings, unfilled zones easily appear in the hub and the rim, the forming force is very large, and the die life is short. To solve these problems, a new scheme of up concave blank according to different filling states of blank under different free spaces was put forward. Finite element model of gear blank forging was established by using the finite element software Deform-3D, and the forming process was simulated. Taking the forming load as objective function, the blank diameter was optimized by using the golden section method, which lead that forming load reduced by 31.76% when the forging was full filled, and thereby die life was improved. A good agreement was found between the simulation and experimental results. The shape of forging parts meets the design requirements without unfilled zones and folding defects.

Funds：

江苏省研究生企业工作站项目

储文平（1988-），男，硕士研究生

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