Transactions of Materials and Heat Treatment

Title：Study of composite upsettingforging for preforming motor starting gear

Authors： FENG Wen-jie SONG Min-min CHEN Ying-ying

Unit： Chongqing

KeyWords： cold extrusion composite upsettingforging starting gear

ClassificationCode：TG316

year,vol(issue):pagenumber：2011,36(4):23-25

Abstract：

According to the different location of recesses in the preform of motorcycle starting gear, two cold extrusion programs were designed to upsetforge flange and inner hole together. With the help of finite element analysis software Deform3D, the forming process of preforming motor starting gear was simulated,and the metal flow laws of the two cases were compared. The simulation results show that preform with recess in the middle is better，the forming force is lower. Technological tests show that test results are in accordance with the simulation.

Funds：

重庆市科委攻关项目（CSTC,2005AC3033）

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