Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Eads Space Transportation Gmbh

Jan Hauptmann

Eckhard Beyer

Steffen Beyer

Erich Lugscheider

Ramona Eberhardt

G&uuml;nter Wiedemann

Andreas Wetzig

Gunter Kirchhoff

Achim Mahrle

Patrick Herwig

Paul Boettner

Stephan Schmidt

A device and a method for beam shaping and beam movement during laser material processing with a laser beam source () for continuously emitting a laser beam (), a first optical deflection element (), a second optical deflection element (), and an optical focusing element () arranged between the second optical deflection element () and a workpiece surface () to be processed. The second optical deflection element () is configured to displace a point of incidence of the laser beam () on the workpiece surface (), and the first optical deflection element () is configured to alter a position of a focal plane of the laser beam () relative to the workpiece surface () by means of a translational movement and/or to change an intensity distribution within a beam cross section of the laser beam.

Device and method for beam shaping and beam modulation during laser material processing

A method for producing a brazed joint having at least one of a metal/ceramic joint and a ceramic/ceramic joint. The method includes forming bores in at least one ceramic surface to be brazed, and the bores have an average diameter of greater than 550 &#x3bc;m. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Method for brazing ceramic surfaces

The invention relates to a device and method for structuring the surface of floor coverings which have already been laid, comprising various floor coverings which may also consist of mineral materials such as natural or artificial stone. The object of the invention is to provide floor coverings which have already been laid with a structure on their surface, which structure makes it possible to at least increase the nonslip properties even in the presence of slippy media, e.g. water. To do this, the invention uses a device with which at least one laser beam can be moved with controlled intensity and in at least one dimension across the surface to be structured, the elements for guiding and shaping the laser beam(s) being accommodated in a mobile part of the device, so that this mobile part is guided intermittently or continuously across the floor surface which is to be structured and, in the process, the structuring can be formed by means of the laser beam.

Device and method for structuring the surface of floor coverings which have already been laid

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Dresden, Germany

Jan Hauptmann