Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Jorg Beersiek

Wolfgang Schulz

Eckhard Beyer

Peter Abels

Holger Nitsch

A method for treating materials with plasma-inducing high-energy radiation, especially laser radiation, where an area of vapor capillaries (,) of a work piece (,) is observed with a depth definition detecting device over the entire thickness of the work piece and time-dependent measurement of plasma radiation intensity is carried out. In order to accurately monitor the quality of material treatment, the method is implemented in such a way that the momentary plasma intensities are measured at no less than two measurement points which are parallel to an axis (,) of inducing radiation (,). Predetermined capillary parameters are assigned to the measured plasma intensities and control of the material treatment is conducted depending on the capillary geometric parameters.

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Aachen, Germany

Jorg Beersiek