18 August 1997 Automatic laser-based material identification and marking: a new approach
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Proceedings Volume 3097, Lasers in Material Processing; (1997) https://doi.org/10.1117/12.281100
Event: Lasers and Optics in Manufacturing III, 1997, Munich, Germany
Abstract
Laser-Induced Breakdown Spectroscopy (LIBS) is a remote, online, in situ technique used for the quantitative analysis of elemental constituents in matrices such as steels, non ferrous metals, polymers and soils. A typical industrial application already established is the sorting of non ferrous metals for the purpose of recycling. A new device, the Laser Identification and Marking System introduced here, uses a combination of material identification by means of LIBS and instantly marking the workpiece using the same Nd:YAG laser. This method was developed since the application required a strongly decreased probability of mixing up of different steel qualities in comparison to conventional methods. At the same time a decisive disadvantage of LIBS, the insufficient detection limits for several elements, can be lowered by using repetitive bursts of multiple laser pulses.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ruediger Quay, R. Sattmann, Reinhard Noll, "Automatic laser-based material identification and marking: a new approach", Proc. SPIE 3097, Lasers in Material Processing, (18 August 1997); doi: 10.1117/12.281100; https://doi.org/10.1117/12.281100
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