| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser processing device capable of effectively disposing of molten material (debris) generated by irradiating a workpiece with a laser beam from a light collector, and forming a laser processed groove having a desired depth.SOLUTION: The laser processing device includes: laser beam irradiation means; and a condensing lens for condensing a laser beam. The laser processing device further includes molten material disposal means 7 provided downstream of a light collector 53 in a laser beam irradiation direction, for disposing of molten material generated by the laser processing. The molten material disposal means 7 includes: a gas injection part 71 having an opening for allowing the passage of the laser beam emitted from the light collector 53, for injecting high speed gas from the opening toward a workpiece; and a molten material suction part 72 having a suction port 721 provided so as to surround the opening of the gas injection part 71, for sucking the molten material scattered by the high speed gas injected from the opening. The gas injection part 71 is connected to high pressure gas supply means, and the molten material suction part 72 is connected to molten material suction means. |
