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Fiber laser cutting: The use of carbon-filled acrylic as a qualitative and quantitative analysis tool

: Atiyah, H.; Powell, J.; Petring, D.; Stoyanov, S.; Voisey, K.T.


Journal of laser applications : JLA 30 (2018), No.3, Art. 032009
ISSN: 1042-346X
ISSN: 1938-1387
Journal Article
Fraunhofer ILT ()

The use of carbon-filled black acrylic (CFBA) as a quantitative and qualitative analytical tool for fiber laser cutting is investigated. In the qualitative work, CFBA targets placed below the laser cutting zone when cutting stainless steel showed a distinctive “leaf” shaped evaporation crater which can provide information about the nature of the reflections taking place in the cut zone. Quantitative measurements have revealed a specific evaporation energy of 3.4 J/mm3 for CFBA. However, this figure is only applicable when considering intense beams when the CFBA target is stationary with respect to the laser beam.