An Analytical Model for Quality Inspection of Laser Marking/Glazing Clay Tiles
In this article the quality control of laser marking/engraving of clay tiles using a high power diode laser (HPDL) has been investigated. A one-dimensional analytical model with quasi-stationary situations in an isotropic and inhomogeneous workpiece with a parabolic melt pool geometry being assumed, was successfully developed. The theoretical results were compared with the experimental data. The predicted melt pool depth and the experimental values were in relatively good correspondence for values of the incident laser energy density (>15Wmm-1s-1/2), in spite of simplifications introduced during modeling. At the relatively large values of laser energy density, the assumption of parabolic melt pool shape and one-dimensional heat transfer no longer holds true.
KeywordsClay Titanium Nitride
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- Römer G.R.B.E., 1999, Modeling and Control of Laser Surface Treatment. PhD Thesis. ISBN 90-365-1304-9. Eiberger, the Netherlands.Google Scholar
- Schneider M.F., 1998, Laser cladding with powder. PhD Thesis. University of Twente. Enschede, the Netherlands.Google Scholar
- Derouet H., Caillibotte G. and Kechemair D., 1994, Towards Real Time Control of Surface Treatments with Liquid Phase: Molten Depth On-line Estimation. Laser Material Processing: Industrial and Microelectronics Applications. SPIE 2207. p. 321–329.Google Scholar
- Callister W.D. Jr., 1994, Materials Science and Engineering — An Introduction. Third Edition. John Wiley & Sons, Inc. U.S.A.Google Scholar
- Lawrence J., 1999, The Characteristics and Feasibility of a Two-stage Ceramic Tile Grout Sealing Process Using a High Power Diode Laser. PhD. Thesis. UMIST. U.K.Google Scholar
- Bäuerle D., 1996, Laser Processing and Chemistry. Second Edition. Springer-Verlag Berlin Heidelberg New York.Google Scholar