*Daisuke Nakamura¹, Toshifumi Kikuchi¹, Ryuma Takabatake¹, Masahiro Koba¹, Rikuto Kokubo¹, Hiroshi Ikenoue² (1. Kyushu University, 2. Kochi University of Technology)

*Shumpei Fujio¹, Yuya Koyama², Mao Sudo¹, Keisuke Takenaka³, Yuji Sato³, Minoru Yoshida², Masahiro Tsukamoto³ (1. Graduate School of Engineering, Osaka University, 2. Faculty of Science and Engineering, Kindai University, 3. Joining and Welding Research Institute, Osaka University)