LASER MACHINING DEVICE

摘要

The laser machining apparatus includes a transmission fiber (2) that transmits laser light (L) emitted from a laser oscillator (4) through the fiber, a machining head (3) that emits the laser light (L), which is sent from the transmission fiber (2), vertically to a main surface of a machining object W and sends reflected light (Re), which is reflected coaxially with the laser light (L) by the machining object (W), to the transmission fiber (2), a reflected light monitoring unit (10) that detects a reflected light intensity of the reflected light (Re) sent from the transmission fiber (2), and a control device (1) that controls the laser oscillator (4) and the machining head (3), in which the control device (1) includes a determining unit that, at a time when laser machining is started, determines whether the machining object (W) corresponds to a machining condition or not in laser machining on the basis of the reflected light intensity.