METHOD FOR PUNCTURING METAL WORKPIECES BY MEANS OF A LASER BEAM AND ASSOCIATED LASER MACHINING MACHINE AND COMPUTER PROGRAM PRODUCT

摘要

The invention relates to a method for puncturing a metal workpiece (6) at a puncture point (11) by means of a laser beam (5) and a process gas (7), which both exit from a laser machining nozzle (8), a bulge (14) being deposited on the workpiece surface (12) around the puncture point (11) during the puncturing. According to the invention, during the puncturing the distance of the laser machining nozzle (8) from the bulge (14) is continuously measured and at least one puncturing parameter is changed in accordance with the measured distance.