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  4. New advances in process control for laser materials processing
 
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2001
Conference Paper
Title

New advances in process control for laser materials processing

Abstract
Laser beam materials processing requires both, high quality output as well as reliable monitoring actions for each processed part. The process diagnostic device commonly used in actual quality monitoring systems is a spatially integrating plasma sensor. Experimental results have shown that the reliability of the quality prediction can significantly be increased by using a camera system with a two-dimensional spatial resolution instead. Based upon these results an online process control system was developed. The system can be adapted for different applications like welding, cutting or surface treatment. In the case of welding the system can monitor the penetration depth, a full penetration of the workpiece, deviations from the desired welding path, seam width, stability of the capillary and defects of the seam caused by ejection of molten material. The latest research results obtained with the system will be presented.
Author(s)
Kratzsch, C.
Abels, P.
Kaierle, S.
Poprawe, R.
Fraunhofer-Institut für Lasertechnik ILT  
Schulz, W.
Mainwork
Japan Welding Society. 7th International Symposium. Proceedings. Today and tomorrow in science and technology of welding and joining. Vol. 1  
Conference
Japan Welding Society (International Symposium) 2001  
Language
English
Fraunhofer-Institut für Lasertechnik ILT  
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