LASERSTRAHLBEARBEITUNGSVERFAHREN

摘要

A method of working with a laser beam to cut a workpiece according to a working program comprising consecutive move instructions and laser beam output instructions. An angle of a passage along which the workpiece is worked is computed with the move instruction under execution and the subsequent one (S2, S3) read. The angle of the passage thus computed is compared with a preset angle (S4), and, when the angle of the passage for working is sharper than the preset one, move for working based on the move instruction under execution is decelerated and stopped (S5). At this time, a laser beam output instruction is shifted from cutting work conditions to drilling work conditions for performing drilling work. At the end of drilling work, move for working is again started on the basis of the subsequent move instruction and the laser beam output instruction at the time of re-start of move for working is changed from drilling work conditions to cutting work conditions according to move for working. In this way, a part of workpiece in acute angle can be worked sharply.