Transactions of Materials and Heat Treatment

Title：Influences of different aspect ratios on formability of aluminum alloy bridge-shaped parts

Authors： Zhou Xiaojing Li Guojun Zhang Zhimin Wu Ying

Unit： North University of China Taiyuan 030051 Jinxi Industry Group Co. Ltd.

KeyWords： extrusion bridge-shaped parts aluminum alloy metal flow aspect ratio

ClassificationCode：TG379

year,vol(issue):pagenumber：2016,41(11):9-14

Abstract：

To reveal the plastic flow laws of the bridge-shaped parts during the deformation, the forming processes with different aspect ratios were investigated and comparatively analyzed by finite element simulation software, and its initial extrusion forming process was determined. The results show that during deformation of the forging, when the punch stroke is 10.71, 21.41 and 28.90 mm respectively, equivalent strain and equivalent stress are more evenly distributed under S=21.41 mm. When S is 21.41 mm, the difference of equivalent strain is the smallest and the maximum value of equivalent stress is the lowest with the width of bridge-shaped piece W=20 mm and aspect ratio H/W=3.15. With the simulation and test results of forming process parameters and projects, a bridge-shaped forging that meets the requirements of the product can be obtained.

Funds：

国防基础科研项目(JSJC2013204B403)

周小京 (1991-) ，男，硕士研究生李国俊 (1969-) ，男，硕士，研究员级高级工程师

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