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  4. Measurement of cut front properties in laser cutting
 
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2014
Conference Paper
Title

Measurement of cut front properties in laser cutting

Abstract
Cut-front properties are a key variable in laser-cutting and thus of major importance for self-optimization. Within the Cluster of Excellence at RWTH Aachen University, several achievements were made in setting up sensor-systems that provide information on the operating-point of this melt-based manufacturing process. These achievements contribute to a gradual increase in system-transparency which is seen as an enabler for self-optimization. Instead of searching for a single measurand to characterize the course of the process, an approach is being presented which establishesa surrogate criterion to allow determination of the current operating-point. In the depicted area, this is done by joining sources of information from process observation, determining boundary-conditions such as actual feed-rate and modeling of process-variables. Although process-variables like properties of the cutting-front are influenced through more than one process parameter, a concept for a sensor-system is reported showing the correlation between properties of the melt-front and the current feed-rate. The results are compared to a solution derived from process-simulation.
Author(s)
Thombansen, U.
Hermanns, T.
Molitor, T.
Pereira, M.
Schulz, W.
Mainwork
Laser Assisted Net Shape Engineering 8  
Conference
International Conference on Laser Assisted Net Shape Engineering (LANE) 2014  
International Conference on Photonic Technologies 2014  
Open Access
DOI
10.1016/j.phpro.2014.08.107
Additional full text version
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Fraunhofer-Institut für Lasertechnik ILT  
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