Transactions of Materials and Heat Treatment

Title：Research on die forming force of splined shaft flange

Authors： Cheng Junwei Feng Xianzhang Zhang Xinfang Jiang Zhiqiang

Unit： Zhengzhou Institute of Aeronautical Industry Management

KeyWords： flange die forming force excess material cavity numerical simulation

ClassificationCode：

year,vol(issue):pagenumber：2015,40(7):13-18

Abstract：

Based on the structure characteristics of the splined shaft flange, the die forging process with three steps was laid down by theoretical analysis and FEA. The splined shaft flange had thin thickness with three ears that needed more metal to form, so the key problem of the process was the control of die forming force. The three following measurements could reduce the final forging force effectively： using warm forming, distributing metal reasonably by wedge-shaped die surfaces in pre-forging step to improve metal flowing in final forming, and setting residual material cavity on the boss in flange center in order to contain the residual metal. The feasibility of die forging process was proved by FEA. At last, the qualified forging was obtained by experiment. Pre-forging part designed with wedge-shaped flange can solve the problem of accumulating material in pre-forging step, and it is benefit for finished forging.

Funds：

河南省高等学校青年骨干教师资助计划项目(2010GGJS-147)；河南省科技攻关项目(132102210460，102102210152);河南省教育厅科技攻关项目(2010A450001)

程俊伟（1973-），男，博士研究生，副教授

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