| 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 |
Elimination of Deformation Localization in the Forming of Fuselage Profiles with Variable Bending Curvatures and Sections Employing the Novel Friction Assist Stretch Bending Method |
| Author(s) |
Nan Xiang, Shu-peng Cai, Yi-bo Zhao |
| On-Site Speaker (Planned) |
Nan Xiang |
| Abstract Scope |
Though the tensile stress dominated stress state leads to the increased sheet metal formability in stretch bending process, the localization of tensile stress probably occurs, especially in the forming of thin-walled, high strength, and complex-shaped profiles, which causes the nonuniform redistribution of internal stresses and inferior shape accuracy. As a result, a novel friction assist stretch bending (FASB) process is proposed in this study. Rubber-metal composite sheet is employed to generate tangential friction, which may adjust the stress states of sheet metal and improve the contact condition between sheet metal and die. Based on the simulated optimal process parameters, fuselage profiles with variable bending curvatures and sections are successfully manufactured through the proposed process. The section deviation after unloading is reduced by 76.3% compared with that of conventional stretch bending. Further industrial applications of FASB process on the manufacture of large-sized and complex-shaped profiles are expectable. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |