Evalution et optimisation de l'effet des paramétres d'érosion sur le verre sodoclcique par la méthode de taguichi

Abstract

In the present work, the evaluation and optimization of the parameters of the erosion process ofsoda-lime glass for the responses: optical transmission, flexural strength, damage rate and surface roughness were studied using the TAGUCHI method. The L9 orthogonal table of the experiments was implemented to obtain the best combination of the parameters. The experiments were carried out according to three factors at three levels, as the particle projection velocity (V), the sand grain size (T) and the mass of the projected particles (Mp), considered as the main influencing parameters. The ANOVA analysis of variance was doneto determine the significant parameters affecting the responses. The results clearly show that the sand grain particle size is statistically the most significant on all the responses with a contribution on the variation of damage rate, optical transmittance, quadratic roughness, total roughness and flexural strength in the order of (60.3, 56.79, 58.53, 84.77, 75.76)% respectively Signal to noise (S/N) analysis was carried out to obtain the optimum combination of input parameters. The results found indicate that the optimal combination for the responses (optical transmission and damage rate) was: particle velocity at level 3, particle size at level 1 and projected mass at level 3, related to the severe erosion conditions in the glass sandblasting process while for the other responses, the optimal combination was: particle velocity at level 3, particle size at level 3, and projected mass at level 3. The optical micrographs of the damaged surface confirm this result.