A theoretical model describing the temperature distribution on plastic material during the laser marking process has been developed. The heat conduction differential equation was solved analytically by the Green function method, and numerically, based on the finite element method using ANSYS®(5.5). The experimental irradiation of a methacrylate piece by a CO2 laser was carried out in order to check the validity range of the model.
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Conde et al. (2001) studied this question.
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