| 摘要 |
PURPOSE:To provide a laser beam machining apparatus, in which a material to be machined having aluminum or its alloy, etc., as the constituting material can efficiently be machined. CONSTITUTION:This apparatus is provided with a first laser beam irradiating means 1 composed of CO2 laser beam, a second laser beam irradiating means 2 generating the laser beam easily absorbed to the material 5 to be machined and melting the surface layer part of the material 5 to be machined, an optical system 3, 4 for introducing the laser beams 1a, 2b in the first and second laser beam irradiating means 1, 2 to the material 5 to be machined and a setting means 6 for irradiating timing in the first and second laser beam irradiating means 1, 2. |
