| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a stable and high quality cutting face even at a cutting start point and to realize cutting with high accuracy by simple control even in the case of containing an acute angle shape. <P>SOLUTION: In a laser beam machining head of a laser beam machining device which executes cutting by irradiation of the laser beam 7 from an opening 8 of a machining nozzle, and at the same time, by jetting out a machining gas 6 from the opening 8 of the machining nozzle, the machining nozzle is arranged movably in such a manner that the opening center 9 of the machining nozzle to an optical axis 1 of the laser beam 7 is displaced in a position mutually aligned or eccentric to each other, and at the same time, a nozzle regulating means to regulate the position of the opening center 9 of the machining nozzle to the optical axis 1 of the laser beam 7 is provided. <P>COPYRIGHT: (C)2004,JPO</p> |
