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Proceedings Paper

Analysis of hazardous substances released during CFRP laser processing
Author(s): Michael Hustedt; Juergen Walter; Sven Bluemel; Peter Jaeschke; Stefan Kaierle
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Paper Abstract

Due to their outstanding mechanical properties, in particular their high specific strength parallel to the carbon fibers, carbon fiber reinforced plastics (CFRP) have a high potential regarding resource-efficient lightweight construction. Consequently, these composite materials are increasingly finding application in important industrial branches such as aircraft, automotive and wind energy industry. However, the processing of these materials is highly demanding. On the one hand, mechanical processing methods such as milling or drilling are sometimes rather slow, and they are connected with notable tool wear. On the other hand, thermal processing methods are critical as the two components matrix and reinforcement have widely differing thermophysical properties, possibly leading to damages of the composite structure in terms of pores or delamination. An emerging innovative method for processing of CFRP materials is the laser technology. As principally thermal method, laser processing is connected with the release of potentially hazardous, gaseous and particulate substances. Detailed knowledge of these process emissions is the basis to ensure the protection of man and the environment, according to the existing legal regulations. This knowledge will help to realize adequate protective measures and thus strengthen the development of CFRP laser processing. In this work, selected measurement methods and results of the analysis of the exhaust air and the air at the workplace during different laser processes with CFRP materials are presented. The investigations have been performed in the course of different cooperative projects, funded by the German Federal Ministry of Education and Research (BMBF) in the course of the funding initiative “Photonic Processes and Tools for Resource-Efficient Lightweight Structures”.

Paper Details

Date Published: 22 February 2017
PDF: 18 pages
Proc. SPIE 10097, High-Power Laser Materials Processing: Applications, Diagnostics, and Systems VI, 100970Q (22 February 2017); doi: 10.1117/12.2249868
Show Author Affiliations
Michael Hustedt, Laser Zentrum Hannover e.V. (Germany)
Juergen Walter, Laser Zentrum Hannover e.V. (Germany)
Sven Bluemel, Laser Zentrum Hannover e.V. (Germany)
Peter Jaeschke, Laser Zentrum Hannover e.V. (Germany)
Stefan Kaierle, Laser Zentrum Hannover e.V. (Germany)


Published in SPIE Proceedings Vol. 10097:
High-Power Laser Materials Processing: Applications, Diagnostics, and Systems VI
Stefan Kaierle; Stefan W. Heinemann, Editor(s)

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