Spectroscopic monitoring of FeO fluorescence for laser treatment of steel surfaces in air


  1. Daigle, J.-F.
  2. Pudo, D.
  3. Theberge, F.
  4. Fortin, J.
Corporate Authors
Defence Research and Development Canada, Valcartier Research Centre, Quebec QC (CAN)
Since their invention in the 1960s, lasers have been used to treat metallic surfaces for different purposes. In fact, techniques involving lasers were developed to clean surfaces,1,2 drill holes of different sizes,3 weld surfaces together4,5 and cut metallic sheets.6 The technology has grown sufficiently mature that it is already implemented in many industrial sectors such as car production and ship manufacturing and is considered as a reliable alternative to other mechanical treatments. Laser treatment of steel is considered to be a performant manufacturing process, because it has a low heat input, creates little distortion, has a small heat-affected zone, provides an excellent repeatability and, once treated, the mechanical properties are excellent. The advent of fiber laser technology capable of generating kWs of power in the first years of the 21st century solidified the position of laser usage for industrial purposes.7 Fiber lasers are very robust, ruggedized, and have been developed to become pretty much turn-key systems such that the transition from the laboratories to the industry has been more or less trivial.
laser;spectroscopy;steel;iron oxides;blackbody;welding;drilling;cutting;cleaning
Report Number
DRDC-RDDC-2015-P069 — External Literature
Date of publication
01 Aug 2015
Number of Pages
Electronic Document(PDF)

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