| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XII
|
| Presentation Title |
Friction Stir Welding of Thick Steel Plate by Silicon Nitride Tool |
| Author(s) |
Yoshiaki Morisada, Masakazu Mori, Yasushi Hara, Yusuke Katsu, Hidetoshi Fujii |
| On-Site Speaker (Planned) |
Yoshiaki Morisada |
| Abstract Scope |
Friction stir welding (FSW) is being increasingly attractive in welding steels on account of the high-quality weld formation and excellent weld properties. Although various materials such as polycrystalline cubic boron nitride (PCBN), tungsten alloys and Ir alloys are used as tool material, it is difficult to decrease the tool price because of the rare compositional elements and/or expensive production process. Among ceramic materials, silicon nitride is one of the best candidates as tool material due to its excellent fracture toughness and low cost. However, silicon nitride tool has been mainly used for only thin steel plates with a thickness of 3 mm or less. In this study, we investigated the ability of a silicon nitride FSW tool to weld a low carbon thick plate with a thickness of 6～15 mm. Additionally, effect of the FSW condition on the tool wear and tool life were clarified. |
| Proceedings Inclusion? |
Planned: |