Verfahren und Einrichtung zum Bearbeiten von Werkstuecken mittels Laserstrahl

In order to achieve maximum absorption of laser radiation in the workpiece during workpiece machining using a laser beam while attaining minimum interference through optical feedback and plasma, the laser- and material-specific limit values of the laser beam intensity, i.e. the threshold intensity I<C to form a laser-induced plasma and the limit intensity I<D above which the plasma reverts to a shielding state, is determined in the time domain and, during the machining of the workpiece, laser emission is controlled by continuously detecting and considering the processes in the machining zone of the workpiece by corresponding modulation of the laser radiation so that the laser intensity I<L retained in the range I<C <= I<L < I<D.