| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser machining method capable of enhancing production efficiency by reducing machining time of a work. SOLUTION: The irradiation position of a laser beam is moved at low speed from one end P to the other end Q of the machining part 44a so as to weld the part. Then, the irradiation position of the laser beam is moved at high speed from the end Q of the part 44a to another end P of a machining part 44b. At this time, the irradiation position is moved through the passing part 46a, however, since the laser beam moves this part 46a at high speed, it is free from melting and machining. This method is successively repeated so that all machining parts 44a-44h are welded. |
