Title :
Online control of penetration depth in laser beam welding
Author :
Kaierle, S. ; Beersiek, J. ; Kreutz, E.W. ; Poprawe, R. ; Günnewig, J. ; Rake, H.
Author_Institution :
Lehrstuhl fur Lasertech., Tech. Hochschule Aachen, Germany
fDate :
31 Aug-4 Sep 1998
Abstract :
In laser beam welding, the penetration depth is one of the most important quality aspects. Many industrial applications demand for accurate welding depths without fluctuations. As a consequence, the utilization of appropriate methods for online supervision and control of the welding depth is required. The development of a multivariable online control system for the control of the penetration depth in laser beam welding is described. The technical realization and the achieved results are figured out in detail. Comparison between controlled and uncontrolled laser welding shows the improvement. The control system is part of a higher ranked setup for controlling the whole manufacturing process within an autonomous production cell
Keywords :
laser beam welding; multivariable control systems; process control; spatial variables control; autonomous production cell; industrial applications; laser beam welding; manufacturing process; multivariable online control system; online supervision; penetration depth control; process quality; technical realization; Control systems; Design automation; Laser beams; Manufacturing processes; Optical control; Process control; Process planning; Production planning; Sensor phenomena and characterization; Welding;
Conference_Titel :
Industrial Electronics Society, 1998. IECON '98. Proceedings of the 24th Annual Conference of the IEEE
Conference_Location :
Aachen
Print_ISBN :
0-7803-4503-7
DOI :
10.1109/IECON.1998.722929
