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| Titre: | ÉTUDE DE L’ENDOMMAGEMENT DES SURFACES OPTIQUES PAR DES PARTICULES ABRASIVES |
| Auteur(s): | Lakhdari, Fouad |
| Mots-clés: | subsurface damage
surface roughness
grinding
optical surfaces
surface characterization |
| Date de publication: | 7-mai-2017 |
| Résumé: | In this work, a method based on the mechanical strength for detection and measurement of the
crack layer 'SSD sub surface damage' of glass ground by alumina abrasives was used. The
relationship between the break strength and the depth of median cracks generated by indentation
tests has been established. The effect of surface roughness SR on depth of subsurface damage
was established by varying size of grains and time of grinding and we could establish the
constant of proportionality between SR and SSD. Moreover we determined a correlation between
subsurface damage and the size of abrasive grains. Through the results, this method allows to
evaluate in a simple way the depth of subsurface damage during the process of grinding or other
technical damage. |
| URI/URL: | http://dspace.univ-setif.dz:8888/jspui/handle/123456789/1032 |
| Collection(s) : | Mémoires de magistère
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