Transactions of Materials and Heat Treatment

Title：Optimization on forging process parameters and defect analysis for aluminum alloy control arm

Authors： Sun Weiling1 Ding Jingen2 Bian Yi1 Gao Bingkun1 Liu Zhenghui2

Unit： 1. Beijing Research Institute of Mechanical & Electrical Technology Ltd. Beijing 100083 China 2.China Manchinery Industy Technology Research Institute of Precision Forming Wuhu 241000 China

KeyWords： aluminum alloy control arm forging process mold optimization folding defect

ClassificationCode：TG316

year,vol(issue):pagenumber：2019,44(5):29-34

Abstract：

In order to meet the requirements of lightweight for passenger vehicles, the forming process parameters and the preforging die of aluminum alloy control arm were optimized, and the forging temperature and die temperature of the preforging sequence were analyzed by the single variable method and the finite element analysis software to determine the influence law of two parameters on the forming effect of control arm. The calculation results show that the forging process parameters with initial forging temperature of 420-450 ℃ and mold temperature of 280-300 ℃ are selected. And the neck folding defect occurred in the forging experiment is eliminated by increasing the transition rounded corner at the bottom of rib at the middle arm of preforging die and central hole. Finally, the rationality of forging parameters and the feasibility of mold modification scheme were validated by the forging experiment to avoid quality defects in actual production.

Funds：

芜湖市科技计划项目（2018cg25）

作者简介：孙伟领（1992-），男，硕士研究生 Email：854679470@qq.com 通讯作者：边翊（1976-），男，硕士，研究员 Email：bianyi@jds.ac.cn

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