On the Nd:YAG pulsed laser processing of rigid PVC

L. C. Hernández; M. Arronte; L. Ponce; T. Flores; J. Guerrero; E. de Posada; E. Rodríguez

doi:10.1117/12.848713

3 December 2009 On the Nd:YAG pulsed laser processing of rigid PVC

L. C. Hernández, M. Arronte, L. Ponce, T. Flores, J. Guerrero, E. de Posada, E. Rodríguez

Proceedings Volume 7499, Seventh Symposium Optics in Industry; 74991B (2009) https://doi.org/10.1117/12.848713
Event: Seventh Symposium on Optics in Industry, 2009, Guadalajara, Jalisco, Mexico

Abstract

The potential of Nd:YAG pulsed laser to processing PVC sheets minimizing HCl gases emission is investigated. We studied the gas emission when the PVC is cut by either CO2 or Nd:YAG pulsed laser by using FTIR Spectroscopy. Optical microscopy of laser treated PVC samples was performed in order to demonstrate the carbonization. On the other hand, LIBS spectroscopy for two different ranges of pulse duration was employed in order to investigate the plume composition during the Nd:YAG pulsed laser ablation process. The experiments shows that Cl atoms are emitted during the Nd:YAG pulsed laser ablation although the HCl gases are produced at low levels. In order to explain the sub-surface irregularities detected for Nd:YAG laser irradiation, a one-dimensional model is developed to study the temperature evolution inside the sample. We demonstrate that the ablation mechanisms prevail on thermally drive emission until 70 μm, afterwards the thermal expansion process is already observed.

Citation Download Citation

L. C. Hernández, M. Arronte, L. Ponce, T. Flores, J. Guerrero, E. de Posada, and E. Rodríguez "On the Nd:YAG pulsed laser processing of rigid PVC", Proc. SPIE 7499, Seventh Symposium Optics in Industry, 74991B (3 December 2009); https://doi.org/10.1117/12.848713

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