|
|||||
|
|
Formability evaluation of friction stir welded 6111-T4 sheet with respect to joining material direction |
|
| Authors: | Daeyong Kim Junehyung Kim Kwansoo Chung |
| Affiliation: | a Department of Materials Processing, Korea Institute of Materials Science, 531 Changwondaero, Changwon, Gyeongnam 641-831, Republic of Korea b Advanced Mechanical R&D Group Mobile Communication Division, Samsung Electronics Co., Ldt. 416 Maetan-3dong, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-742, Republic of Korea c Materials & Processes Lab., GM R&D and Planning, General Motors Corporation, Warren, MI 48090-9055, USA d Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea |
| Abstract: | In order to evaluate the formability of friction stir welded (FSW) automotive TWB (tailor-welded blank) sheets with respect to base material direction, the aluminum alloy 6111-T4 sheet was joined with three different types of combination: RD||RD, TD||RD, TD||TD (Here, RD and TD mean the rolling direction and transverse direction, respectively). Formability performance was experimentally and numerically studied in three applications including the simple tension tests, hemisphere dome stretching and cylindrical cup drawing tests. For numerical simulations, the non-quadratic orthogonal anisotropic yield function, Yld2004-18p and the isotropic hardening law were implemented into the material constitutive model. As for the failure criterion, the forming limit diagram (FLD) was utilized to determine the failure strain. |
| Keywords: | Friction stir welding Tailor welded blanks Formability Aluminum alloy sheets Anisotropic yield function Forming limit diagram |
| 本文献已被 ScienceDirect 等数据库收录！ | |