2015 Fiscal Year Final Research Report
Establishment of prediction and evaluation techniques of the effect of initial residual stress in sheet metal forming process
| Project/Area Number |
25420776
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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 |
Material processing/Microstructural control engineering
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| Research Institution | Shizuoka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
Sakaida Yoshihisa 静岡大学, 工学部, 教授 (10334955)
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| Co-Investigator(Renkei-kenkyūsha) |
Uemori Takeshi 岡山大学, 工学部, 准教授 (70335701)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 残留応力 / プレス成形 / 金属薄板 / X線 / 2次元検出 / 矯正工程 |
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| Outline of Final Research Achievements |
In the present study, the effect of initial residual stress of sheet metal, which is induced by the rolling and leveling processes, on the prediction of the geometry and subsequent residual stress of the formed sheet, as well as the precise observation of surface residual stress of sheet metal is investigated.
As a result, the precise prediction of the residual stress after forming was performed by using the high-precision constitutive equation. Furthermore, the precise observation of residual stress of the sheet metal after the leveling process by using 2-dimenisional X-ray diffraction apparatus and the comparison of the observed data with the calculated results was performed. Finally, the possibility for on-site observation of the residual stress of the sheet metal under the leveling process using the 2-dimensional X-ray diffraction apparatus was revealed.
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| Free Research Field |
塑性加工学
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