In-process monitoring of laser surface modification

0561215 - FZÚ 2023 RIV CH eng J - Journal Article
Marimuthu, S. - Pathak, Sunil - Jagdheesh, Radhakrishnan - Kamara, A.M.
In-process monitoring of laser surface modification.
Coatings. Roč. 11, č. 8 (2021), č. článku 886. E-ISSN 2079-6412
Institutional support: RVO:68378271
Keywords : laser * monitoring * in-process * alloys
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 3.236, year: 2021
Method of publishing: Open access

The laser cleaning process has the potential to become an alternative to the existing chemical-based cleaning process if integrated with an effective in-process monitoring system that could serve as a control mechanism over surface damages or contaminants through which the desired surface cleanliness could be achieved. This paper presents results of an investigation into the characteristics and viability of utilizing probe beam reflection (PBR) and laser plume-emission spectroscopy (PES) as respective integrated monitoring systems during and after cleaning of titanium alloy sheets using a frequency-tripled Nd:YAG laser. The results present the probe beam reflection as a better system with the ability to differentiate between cleaned and un-cleaned surfaces for both small and large surface areas.
Permanent Link: https://hdl.handle.net/11104/0333903