Laser workpiece processing involves controlling light beam deflection depending on current contour position detected by control and evaluation unit via scanning mirror(s), optical detector

摘要

The focusing a light beam via one or two scanning mirrors onto the workpiece surface and deflecting it along at least one axis by tilting at least one mirror. Light reflected from the workpiece is directed via the mirror(s) to an optical detector connected to an evaluation and control unit that controls the deflection of the beam depending on the current contour position. The method involves performing a workpiece actual-desired position comparison before laser processing using at least one contour relative to the laser processing head. A light beam (7) is focused via one or two scanning mirrors (2,3) onto the workpiece (4) surface and deflected along at least one axis by tilting at least one mirror. Light reflected from the workpiece is directed via the mirror(s) to an optical detector (5) connected to an evaluation and control unit (6) that controls the deflection of the beam depending on the current contour position. Independent claims are also included for the following: an arrangement for laser processing of workpieces.