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Vorrichtung und Verfahren zum Umformen von Werkstuecken mit Laserdiodenstrahlung

Laser diode appts. for workpiece shaping - comprises detector unit for determining spatial deformation of workpiece, and processing and regulating unit for determining process parameters.

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DE 1995-19514285 A: 19950424
DE 1995-19514285 A: 19950424
EP 1996-910906 A: 19960424
WO 1996-DE711 W: 19960424
DE 19514285 C1: 19960620
EP 822880 A: 19980211
Patent, Elektronische Publikation
Fraunhofer ILT ()

An appts. for workpiece shaping with laser diode radiation has a detector unit, for determining spatial deformation of the workpiece, and a processing and regulating unit, for determining process parameters for further radiation exposures in accordance with a comparison between the actual and desired deformation states. The novelty is that several diode lasers are correspondingly arranged over the workpiece contour to be deformed for directing laser light directly onto the workpiece surface. USE - E.g. for local expansion or constriction of a tube, bending of a sheet or formation of a curved dish from a disc. ADVANTAGE - The appts. has an optical structure with few attenuating components which affect the laser diode efficiency.