| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a laser cutting method and device that dispenses with adjustment for alignment in laser cutting, that realizes distribution of a sharp- rising laser intensity, and that excels in the quality of a cutting face. SOLUTION: In the laser cutting method in which a workpiece such as a steel plate is irradiated with a laser beam for cutting, the condensing laser beam to be emitted to the workpiece is in a plural number 9, and cutting is performed by making the resultant intensity distribution by the plurality of laser beams in a ring shape in the laser irradiation part, as the characteristics of this method.</p> |
