| Title |
A Study on the Effect of Multi-Axial Forging Type on the Deformation Heterogeneity of AA1100 Using Finite Element Analysis |
| Authors |
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) |
| DOI |
https://doi.org/10.3365/KJMM.2021.59.9.624 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
AA1100; forging; deformation; multi-axial; finite element analysis |
| 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) |