| 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 |
Effect of Expansion Ratio on Formability in Tube Drawing with Diameter Expansion |
| Author(s) |
Hikaru Kawaguchi, Shohei Kajikawa, Takashi Kuboki, Isamu Akasaka, Yuzo Terashita, Masayoshi Akiyama |
| On-Site Speaker (Planned) |
Shohei Kajikawa |
| Abstract Scope |
The conventional tube drawing has the disadvantages that thickness reduction in one pass is small.
As a method to eliminate this disadvantage, tube drawing with diameter expansion was proposed in this study. At first, the tube is flared by pushing the plug into the tube end. After that, the plug is drawn with chucking the flared end, and the entire tube is expanded.
Tensile circumferential and axial stress reduce the tube thickness effectively during the plug drawing.
In this study, effect of expansion ratio on formability, such as thickness reduction and dimensional accuracy, was investigated by experiments and finite element analyses (FEA) for verifying effectiveness of the proposed method. As a result, the thickness reduction ratio increased with an increase in the expansion ratio, and the maximum thickness reduction ratio was 0.3 when an aluminum alloy of A1070 was used. Furthermore, deformation mechanism was considered by FEA. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |