Jenoptik Automatisierungstechnik Gmbh

Michael Nittner

Martin Griebel

Walter Lutze

Jean Pierre Bergmann

Thomas Doering

Alex Jancsó

Andreas Patschger

Thomas DÖRING

The present invention relates to the production of a series of holes in a layer of material, in particular to the production of a target rupture line in a first layer of an airbag cover. The radiation of a plasma that forms during the production of each hole is detected from the surface that is being machined. From the signal pattern derived, the time of the beginning of the signal and the time of the appearance of a falling edge that meets a predetermined edge criterion are detected and stored. The point in time at which the falling edge appears is a switching criterion for switching off the laser. The difference between the two points in time stored for each hole constitutes a quality criterion for the respective hole.

Method for producing a series of through holes in a layer of material by means of a laser beam

The system comprises a buckling arm robot with a robot frame () and an articulated arm () and a fiber optic cable () which is connected to one end of the articulated arm () and through which a laser beam () with a beam axis () is coupled into the articulated arm () in the direction of a first axis of the articulated arm (). The fiber optic cable () is indirectly connected to the stationary end of the articulated arm () via an alignment unit () which comprises a collimating lens system () and at least two alignment mirrors (), each of which mirrors can swivel about at least one axis of rotation and move along at least one axis of translation, with the axes of rotation and the axes of translation being disposed at right angles to each other so that the beam axis () of the laser beam () can be made to coincide with the optical axis ().

System for high-dynamic 3D machining of a workpiece by means of a laser beam

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Camburg, Germany

Michael Nittner