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Title
Verfahren zur Lage- und Formkorrektur der Bearbeitungsgeometrie bei der Laserbearbeitung
Date Issued
1998
Author(s)
Morgenthal, L.
Schwarz, T.
Grueneberg, D.
Patent No
1997-19722415
Abstract
The method for position and shape correction during laser operations on workpieces involves use of a pilot light beam. Using beam deflection and focussing systems, a light track corresponding to the operation geometry is produced on the workpiece surface. The presence (D) or absence (C) of a reflection (E) of this light track is detected by a sensor which is connected to a signal evaluation unit. The evaluation unit compares the data received with the data from the beam deflection system to establish deviations of the actual position and shape from their nominal values. The error data thus produced is used to correct the subsequent laser operations. USE - In particular, in laser welding installations. ADVANTAGE - Faults are avoided by optimal adaption of the laser operations to the actual workpiece geometry and position.
Language
de
Patenprio
DE 1997-19722415 A: 19970528