Process for spooling the conduits and/or the hollow spaces of a laser machining machine

[Subject] In the method of 掃気 (ing) by suitable gas, the pipeline of a laser beam machine and a hollow room, or its either is improved about quality and the required time required. [Solution means] It is the method of 掃気 (ing) the pipeline of a laser beam machine and a hollow room, or its either by suitable gas, and the gas formed for 掃気 is intermittently supplied by pressure higher than the pressure which exists in a pipeline and a hollow room, or any its one, and, subsequently to after supply, is expanded. [Selection figure] Fig. 1