Patent ID: 11904407
Assignee: FANUC CORPORATION
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A laser welding apparatus comprising:
a laser head that emits a laser beam; and
an airflow forming unit including an emission nozzle that forms sheet-shaped airflows,
wherein the sheet-shaped airflows formed by the airflow forming unit traverse an optical path of the laser beam emitted from the laser head, the airflows traversing the optical path at a plurality of positions which are spaced from each other in a direction along the optical path in a same direction, and
the airflow forming unit has an opening between the sheet-shaped airflows at the plurality of positions, the opening penetrating in a direction in which the sheet-shaped airflows traverse the optical path, wherein the emission nozzle is positioned to surround the opening.