Surface laser marking optimization using an experimental design approach

Laser surface marking is performed on a titanium substrate using a pulsed frequency doubled Nd:YAG laser ( λ = 532 nm, τ pulse =5 ns) to process the substrate surface under normal atmospheric conditions. The aim of the work is to investigate, following experimental and statistical approaches, the co...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2017-04, Vol.123 (4), p.1-13, Article 230
Main Authors: Brihmat-Hamadi, F., Amara, E. H., Lavisse, L., Jouvard, J. M., Cicala, E., Kellou, H.
Format: Article
Language:English
Subjects:
Applied physics
Characterization and Evaluation of Materials
Condensed Matter Physics
Design of experiments
Design optimization
Laser beams
Laser pumping
Lasers
Machines
Manufacturing
Marking
Materials science
Nanotechnology
Neodymium lasers
Optical and Electronic Materials
Physics
Physics and Astronomy
Process parameters
Processes
Response surface methodology
Semiconductor lasers
Substrates
Surface roughness
Surfaces and Interfaces
Taguchi methods
Thin Films
YAG lasers
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Summary:Laser surface marking is performed on a titanium substrate using a pulsed frequency doubled Nd:YAG laser ( λ = 532 nm, τ pulse =5 ns) to process the substrate surface under normal atmospheric conditions. The aim of the work is to investigate, following experimental and statistical approaches, the correlation between the process parameters and the response variables (output), using a Design of Experiment method (DOE): Taguchi methodology and a response surface methodology (RSM). A design is first created using MINTAB program, and then the laser marking process is performed according to the planned design. The response variables; surface roughness and surface reflectance were measured for each sample, and incorporated into the design matrix. The results are then analyzed and the RSM model is developed and verified for predicting the process output for the given set of process parameters values. The analysis shows that the laser beam scanning speed is the most influential operating factor followed by the laser pumping intensity during marking, while the other factors show complex influences on the objective functions.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-017-0802-z