Device for the removal of material from a workpiece by a laser beam

摘要

A device for the removal of material from a workpiece 10b by a pulsed laser beam 22 has a mask 14b. Provided in the mask 14b is an aperture which lets the laser beam through and has a shading area which does not let the laser beam through to the workpiece so that, during the removal of material from a flat machining section of the workpiece, the laser radiation strikes a marginal area of the surface with higher intensity than a central area. <IMAGE>