| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Grain Size Effect on Formability in Electromagnetically-assisted Micro-bulging of Pure Titanium Sheet |
| Author(s) |
Chengxi Zhu, Jie Xu, Haiping Yu, Debin Shan, Bin Guo |
| On-Site Speaker (Planned) |
Chengxi Zhu |
| Abstract Scope |
It has been revealed that geometry and grain size effects have great effect on the formability of metal foils during quasi-static forming processes. However, there is little research on how these size effects influence formability of metal foils during high speed forming process e.g. electromagnetic forming. To characterize these size effects in electromagnetic bulging, miniaturized Nakazima test and numerical investigation were conducted. Pure titanium foils with different thickness and different grain sizes were utilized in the experiment. In addition, to clarify how forming speed influence the formability of metal foils, different forming voltages were adopted. Finite element method then was used to analyze the electromagnetic bulging process. To analyze how the size effects affect the ductile fracture in electromagnetic micro-forming, M-K failure criterion was modified to model the forming limit in micro-scaled deformation,and is found to be able to model the decrease of forming limit caused by size effects. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |