| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser welding tool capable of preventing spatters from adhering to the inner peripheral surface of a pipe body during laser welding.SOLUTION: A laser welding tool includes a spatter adhering body 11 which is arranged in the inside of the joining part 102 of the pipe bodies 100, 101 as a laser welding tool 10 which is used when welding the joining part 102 of pipe bodies 100, 101 by emitting a laser beam B from a direction crossing the axial direction of the pipe body. The spatter adhering body 11 has adhering plates 12 situated in front of the beam B which penetrates from the joining part 102 to the inside of the pipe bodies 100, 101 and within a predetermined range in the axial direction of the pipe body from the front of the beam B and also gas supply ports 28 which supply shield gas G supplied from a shield gas supply pipe 27 into a space 26 formed in the inside of the spatter adhering body 11 and supply the shield gas G toward the inner peripheral surface of the joining part 102 from the space 26. |
