| 摘要 |
PURPOSE:To provide a titled device which improves working efficiency and speed and enables fine working by the constitution in which laser light is focused and irradiated to the surface of a body to be worked by a focusing lens while a cooling liquid is supplied thereto and gaseous hydrogen is supplied and interposed. CONSTITUTION:The laser light emitted from a laser oscillator 1 is focused to the working part of a body 20 to be worked by a reflecting mirror 2 and a focusing lens 5, and gaseous hydrogen to be introduced through a gaseous hydrogen supplying pipe 10 into a casting 7 is ejected through a hole 7a to the working part. The body 20 is efficiently worked by the energy released in the stage of ionizing the gas by the laser light and recombining the same. The body 20 is disposed via a turntable 16 and cross slide tables 14, 15 into a cooling liquid tank 12 controlled by a numerical control device 21. A cooling liquid 13 such as water is run at a specified speed at which the liquid disturbance does not arise to cool the surface of the body 20. Only the very small part or desired point of the body 20 is thus surely worked. |
