Transactions of Materials and Heat Treatment

Title：Influence of billet setting position on die forging process of TC18 titanium alloy strut

Authors： Zhang Dawei Jing Fei Zhao Shengdun Li Pengchuan Luo Hengjun

Unit： Xi′an Jiaotong University China National Erzhong Group Co.

KeyWords： die forging TC18 titanium alloy setting position finite element analysis

ClassificationCode：TG316

year,vol(issue):pagenumber：2014,39(12):1-5

Abstract：

Initial setting position of billet plays a crucial role in die forging process, and has an important influence on material flow and cavity filling in the die forging process. Die forging process of titanium alloy strut was investigated by finite element method, and the numerical simulations of the processes under different initial setting positions of billet were carried out. The parameter x was defined to describe the setting position of billet. The material flow and cavity filling in the forging processes under different setting positions of billet were analyzed. The results show that in the initial forming stage, the billet has a rigid movement to the right due to the geometric characteristics of both billet and die, and the moving distance is changing for different setting positions. Improper setting position of billet is prone to causing defects such as folding and under-filling. With increasing of x, left cavity changes from filling to under-filling, while right cavity changes from under-filling to filling. However, both left and right cavities are filled up when x is about -42 mm, and folding is invisible.

Funds：

国家科技重大专项（2011ZX04016-081）

张大伟（1982-），男，博士，讲师

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