| 摘要 |
PURPOSE:To minimize a cutting width and to uniformize the laser beam machining by changing over a total reflection mirror and a circular polarizing mirror based on a cutting shape instruction signal and solving the directivity of the machining in accordance with the polarizing direction of a laser beam in the laser beam machining. CONSTITUTION:The laser beam 12b outputted from a laser beam oscillator 12 is bent by a returning mirror 22 and projected on a work 10. The laser beam is changed over according to a signal corresponding to a cutting shape from a numerical controlling device 50 via the returning mirror 22 or the circular polarizing mirror 23 and a mirror driving device 21. By the titled machine with this constitution, the cutting having the cutting state with the high accuracy can be performed. |
