Numerical Simulation On Shape Distortion of Superplastic Forming Ti-6Al-4V cylinder

被引：0

作者：

Jiang Shao-song ^{[1
]}

Lu Zhen ^{[1
]}

Li Bai-ru ^{[1
]}

Wang Guo-feng ^{[1
]}

Zhang Kai-feng ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Technol, Harbin 150001, Peoples R China

来源：

11TH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN INDUSTRIAL FORMING PROCESSES (NUMIFORM 2013) | 2013年 / 1532卷

关键词：

Superplastic Forming; Shape Distortion; FEM;

D O I：

10.1063/1.4806868

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dimensional accuracy and shape distortion caused by the contraction of ZG35Cr24Ni7N refractory steel die when cooling after superplastic forming were analyzed using MSC.MARC. And the influence of different processing parameters on the shape distortion was also studied. The result show that during the cooling process from 930 to room temperature, when the temperature decreases to 915 degrees C, the shape distortion begin to generate, and increasing with the reducing of the temperature up to 800 degrees C. The shape distortion increased with the rising of friction coefficient, this is because the Ti-6Al-4V cylinder can't release the volume through sliding but the plastic deformation when the friction exists. So the plastic deformation increased with the rising of friction and leading to the increase of shape distortion.

引用

页码：505 / 512

页数：8

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