Abstract: The object of this invention is to provide a laser beam machining system and a laser beam machining method, wherein the working environment for the laser beam machining in the safety cabin is not impaired, and carrying out of the machined work can be performed without causing a shift of the machined work on the machining table, and also, without the laser beam machining being suspended, thereby enabling improvement in the productivity. At least one carriage of two, first and second carriages (11), (19) placed in a safety cabin (29) is moved back and forth above a machining table, and a laser machining head provided in that carriage is moved right and left, to thereby perform laser beam machining with respect to a work (W) on a machining table (7 or 9). The second carriage is moved back and forth above the machining table (7 or 9), so that a holding device (25) provided in the second carriage is moved right and left, to thereby hold and carry the machined work (W).

Abstract: The object of this invention is to provide a laser beam machining system and a laser beam machining method, wherein the working environment for the laser beam machining in the safety cabin is not impaired, and carrying out of the machined work can be performed without causing a shift of the machined work on the machining table, and also, without the laser beam machining being suspended, thereby enabling improvement in the productivity. At least one carriage of two, first and second carriages (11), (19) placed in a safety cabin (29) is moved back and forth above a machining table, and a laser machining head provided in that carriage is moved right and left, to thereby perform laser beam machining with respect to a work (W) on a machining table (7 or 9). The second carriage is moved back and forth above the machining table (7 or 9), so that a holding device (25) provided in the second carriage is moved right and left, to thereby hold and carry the machined work (W).

Abstract: A laser beam modulating method is characterized in that the distribution of power density of the laser beam is changed by closing and opening a passage for the laser beam from a laser resonator. An apparatus for carrying out the method includes a modulator for opening and closing the passage for the laser beam from the laser resonator to a laser processing head assembly.