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Vol.59, No.9, 624 ~ 640, 2021
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| Title |
| A Study on the Effect of Multi-Axial Forging Type on the Deformation Heterogeneity of AA1100 Using Finite Element Analysis |
| 김민성 Min-seong Kim , 김정균 Jeong Gyun Kim , 유태현 Tae Hyun Yoo , 조유연 You Yeon Jo , 이성 Seong Lee , 정효태 Hyo-tae Jeong , 최시훈 Shi-hoon Choi |
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| Abstract |
| The effect of 3 forging routes (Route A - 1~12 passes by plane forging (PF) and reverse-plane forging (R-PF), Route B - 1~6 passes by PF and R-PF, 7~12 passes by diagonal forging (DF) and reverse-diagonal forging (R-DF), Route C - 1~12 passes by DF and R-DF) on maximum load to produce the workpiece, deformation heterogeneity and hydrostatic pressure distribution in AA1100 was theoretically investigated using finite element analysis (FEA). The maximum load per pass required to complete 1 cycle of the SPD process was different depending on the forging routes. Route A was relatively higher than Route B and C. From the results of effective strain, the deformation heterogeneity was predicted at the center, edge, and corner regions of the AA1100 workpiece produced by Route A and B. However, the distribution of effective strain in Route C was relatively more homogeneous than Route A and B. The average hydrostatic pressure, which is closely related to the suppression of crack formation in the workpiece under multi-axial forging, was predicted to be relatively bigger in Route C than Route A and B.
(Received December 1, 2020; Accepted March 2, 2021) |
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| Key Words |
| AA1100, forging, deformation, multi-axial, finite element analysis |
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