| 摘要 |
PROBLEM TO BE SOLVED: To enable a miniaturization and a simplification of an apparatus, an improvement in processing efficiency and a reliability in airtight seal, and a shortening of processing time on an increase in the scanning speed of a laser beam by dispensing with rotation of a mechanism of retaining a container or the laser beam around a vertical axis at a corner part of the container.SOLUTION: The laser joint method is a method for seam welding by scanning with a fiber laser along a weld scheduled line 22, where a fiber laser 20A is a laser of single mode with continuous waveform for seam welding while an irradiation position of the fiber laser 20A is being oscillated so as to traverse the weld scheduled line 22. |
