| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XIII
|
| Presentation Title |
Development of High-Speed Double-Sided Friction Stir Welding Technology With Optimized Pre-Heating Process for Automotive Advanced High Strength Steels |
| Author(s) |
Muneo Matsushita, Daiki Yamagishi, Koichi Taniguchi, Rinsei Ikeda, Hidetoshi Fujii |
| On-Site Speaker (Planned) |
Muneo Matsushita |
| Abstract Scope |
Double-sided friction stir welding (FSW) with pre-heating process utilizing high frequency induction heating was studied in an attempt to enhance the welding speed for automotive advanced high strength steels. The experiments were performed on butt joint of 1.6mm thick 1180 N/mm2 grade steel sheets and the maximum welding speed free from weld defect or incompletion was 6.0 m /min, increasing 50% compared with the case without pre-heating. This is fairly comparable with laser beam welding, one of the primary automotive welding processes. According to the metallographic observation of welds, the plastic flow was diminished when thermal gradient developed within the stir zone, which tended to be obvious with high welding speed or high tool rotation speed. The pre-heating process was considered to make a positive impact on homogenizing the temperature field and promoting the plastic flow within the stir zone, which led to increasing the maximum welding speed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Joining, Process Technology |