Transactions of Materials and Heat Treatment

Title：Analysis on stamping of special strap and die design for indium nickel alloys

Authors： He Ping Mao Jianzhong Song Jianli

Unit： Hunan University China North Nuclear Fuel Co. Ltd.

KeyWords： indium nickel alloys stamping special strap of orientation framework CAE springback

ClassificationCode：TG386.2

year,vol(issue):pagenumber：2017,42(4):43-50

Abstract：

Indium nickel alloys are used in manufacturing special strap of nuclear fuel component orientation framework. According to the characteristics, such as the expensive price of indium nickel alloys, the thinner thickness and the long and narrow special strap, its stamping process was simulated by CAE software, and the rapid predictions on changes of springback, rupture and wrinkling were provided as references for the die design. Firstly, the material stamping features were researched, and then the characteristics of special strap were analyzed to determine the coining process. Finally, the strap stamping process was analyzed by finite element simulation, and the die structure was optimized according to the results of simulation. The results show that the indium nickel alloy strap with 0.2667 mm thickness is of better stamping adaptability without the trend of fracture and wrinkling. However, the springback amount of special strap rigid dimple height is large. After springback compensation, the forming height is close to the nominal dimension eventually. Thus, the die designed by the results of CAE analysis is debugged well, and it can satisfy the requirements of special strap coining processing.

Funds：

国家科技重大专项子项（2013ZX06004009）

何平（1993-），男，硕士研究生 E-mail：hp4713@163.com 通讯作者：毛建中（1963-），男，博士，教授 E-mail：maojianzhong66@163.com

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