2013 Fiscal Year Final Research Report
Process Metallurgy Analyses for New Al Alloy Sheet Metal Generation based on Misorientation Theory
| Project/Area Number |
23560106
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Osaka Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 有限要素法 / マルチスケール解析 / プロセスメタラジー / 結晶成長 / アルミニウム合金 / 成形性 / 塑性加工 / 計算力学 |
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| Research Abstract |
In this study, to improve formability of aluminum (Al) alloy sheet metal, micro-ploycrystal texture control and optimization of process conditions were performed. We develop a multi-scale finite element procedure based on misorientation theory, both plastic anisotropy of sheet metal by micro-crystal morphology and plastic deformation-induced micro-texture evolution were analyzed. In order to improve the Lankford value (r-value) with small planar anisotropy of sheet metal, parameters of 2-path rolling processes were optimized. As the results, it was confirmed that the optimum texture has 1.6 times higher r-value and 1.78 times lower planar anisotropy compared with conventional A6022-T43 sheet metal. In the bendability and springback property of Al sheet metal, parameters of asymmetric rolling ratio and heat annealing time were optimized.
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Research Products
(37 results)
