特集号「鉄鋼材料の摩擦接合技術」
摩擦攪拌接合時の力学的挙動に及ぼすツール形状の影響に関する数値解析的検討
キーワード:
friction stir welding,
numerical analysis,
particle method,
finite element method,
tool strength
2022 年 108 巻 12 号 p. 991-1001
詳細
2022 年 108 巻 12 号 p. 991-1001
In friction stir welding, tool shape can effect the mechanical behavior during joining. In this study, the effect of tool shape on the temperature distribution during joining was investigated using numerical simulation method based on particle method. The influence of joining condition such as rotational speed, traveling speed and tilt angle on cylindrical tool and semi-spherical tool were investigated using the particle method. From these results, it was found that the rotation speed and the traveling speed have larger effect than tilt angle on the temperature distribution. It was also found that the cylindrical tool and semi-spherical tool almost have same tendency corresponding to the parameter change. Stresses in tool were also investigated according to the predicted pressure distribution by the particle method. As a result, it was found that the semi-spherical tool can reduce the stress than the cylindrical tool.
