Journal
OPTICS AND LASER TECHNOLOGY
Volume 76, Issue -, Pages 127-137Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2015.08.005
Keywords
Laser milling; Ceramic; Al2O3; Design of Experiment; ANOVA
Categories
Funding
- project INnovazione tecnologica nei SIStemi di Trasporto (INSIST) within the Industrial Technology Network, Theme Transportation-Aeronautics-Space as foreseen by the POR Campania FSE Axis IV and V
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In the present study, laser milling tests were carried out on aluminium oxide (Al2O3) plate, 3 mm in thickness, using a Q-Switched 30 W Yb:YAG fiber laser. A systematic approach based on Design of Experiment (DoE) has been successfully adopted with the aim to detect which and how the process parameters affect the laser beam-material interaction, and to explain the effect of the process parameters on the material removal rate and surface quality. The examined process parameters were the laser beam scan speed, the pulse frequency, the total energy released for surface unit, the distance between two consecutive scan lines and the scanning strategy. A full factorial design and ANalysis Of VAriance (ANOVA) were applied for the results analysis. Finally, the various effects of the process parameters on the material removal rate and surface roughness have been analysed and discussed. (C) 2015 Elsevier Ltd. All rights reserved.
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