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材料研究学报  2011, Vol. 25 Issue (6): 625-629    
  研究论文 本期目录 | 过刊浏览 |
变形方式对模压变形5052铝合金影响的有限元模拟与试验研究
杨开怀1,  陈文哲2,3
1.福建船政交通职业学院机械工程系 福州 350007
2.福州大学材料科学与工程学院 福州 350108
3.福建工程学院 福州 350108
Finite Element Simulation and Experimental Research on the Influence of Pressing Mode on 5052 Aluminum Alloy Processed by Groove Pressing
YANG Kaihuai1, CHEN Wenzhe2,3
1.Department of Mechanical Engineering, Fujian Chuanzheng Communications College, Fuzhou 350007
2.College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108
3.Fujian University of Technology, Fuzhou 350108
引用本文:

杨开怀 陈文哲. 变形方式对模压变形5052铝合金影响的有限元模拟与试验研究[J]. 材料研究学报, 2011, 25(6): 625-629.
, . Finite Element Simulation and Experimental Research on the Influence of Pressing Mode on 5052 Aluminum Alloy Processed by Groove Pressing[J]. Chin J Mater Res, 2011, 25(6): 625-629.

全文: PDF(837 KB)  
摘要: 采用DEFORM--3D有限元软件研究了限制模压变形(Constrained Groove Pressing, CGP)和非限制模压变形(Unconstrained Groove Pressing, UGP)两种变形方式对模压变形5052铝合金等效应变累积速率和最终等效应变量的影响, 并试验研究了两种变形方式对5052铝合金晶粒细化的影响。结果表明, CGP变形比UGP变形具有更高的等效应变累积速率和终等效应变量; 在相同的变形工艺条件下, CGP变形的晶粒细化能力显著优于UGP变形; CGP与UGP变形在晶粒细化能力上的差异是由于模具结构的不同而引起的本质差异, 与材料体系和变形工艺条件无关。
关键词 金属材料模压变形有限元模拟5052铝合金等效应变晶粒细化    
Abstract:Finite element simulation was carried out for analyzing the accumulative rate of equivalent strain and final equivalent strain of 5052 aluminum alloy processed by constrained groove pressing (CGP) and unconstrained groove pressing (UGP). In addition, experiments were conducted for investigation of grain refinement as a function of accumulative rate of equivalent strain as well as final equivalent strain. The results show that CGP has a higher accumulative rate of equivalent strain and final equivalent strain than UGP. Compared with UGP, CGP is more beneficial to grain refinement due to the higher accumulative rate of equivalent strain and final equivalent strain, which is determined by two different mold constructions and independent of the material and processed condition.
Key wordsmetallic materials    groove pressing    finite element simulation    5052 aluminum alloy    equivalent strain    grain refinement
收稿日期: 2010-03-19     
ZTFLH: 

TG306

 
基金资助:

福建省教育厅面上项目JA2011和福建船政交通职业学院人才引进资助项目。

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