Characterization of Si and SiO2 in dust emitted during ganite polishing as a function of cutting conditions

Auteurs

Jules Kouam, Department of Mechanical Engineering, École de Technologie Supérieure (ÉTS), 1100 Notre-Dame Street West, Montréal, H3C 1K3, QC, Canada
Victor Songmene, Department of Mechanical Engineering, École de Technologie Supérieure (ÉTS), 1100 Notre-Dame Street West, Montréal, H3C 1K3, QC, Canada
Ali Bahloul, Institut de Recherche Robert-Sauvé en Santé et Sécurité du Travail (IRSST), Montréal, H3A 3C2, QC, Canada
Agnes M. Samuel, Department of Mechanical Engineering, École de Technologie Supérieure (ÉTS), 1100 Notre-Dame Street West, Montréal, H3C 1K3, QC, Canada

Type de document

Études primaires

Année de publication

2022

Langue

Anglais

Titre de la revue

Materials

Résumé

Particles emitted during manufacturing processes such as polishing can represent a serious danger for the environment and for occupational safety. The formation mechanisms responsible for these dust emissions include chip formation, friction at the tool/workpiece and chip/tool interfaces, shearing and cutting. These mechanisms thus depend on workpiece and tool properties, as well as the polishing conditions. In the case of granite polishing, particle emissions during polishing can contain chemical compounds such as silica, which represent harmful health risks for the worker. It is therefore important to characterize the particles emitted and to search for possible interactions between the particles (size and composition) and the machining conditions in order to find ways of reducing emissions at the source. In this study, an investigation was undertaken to characterize the particles emitted during granite polishing as a function of polishing conditions, type of granite, and abrasive grit sizes used. Scanning electron microscopy (SEM) was employed for particle morphology characterization and particle grain size and chemical composition were evaluated using X-ray diffraction (XRD) and energy dispersive X-ray (EDX) techniques, respectively. Results show that the influence of polishing speed and feed rate on particle emission depends mainly on the granite type used, providing useful information for controlling the polishing procedure, and thereby dust emission. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Mots-clés

Granit, Granite, Silice cristalline, Crystalline silica, Particule ultrafine, Ultrafine particle, Échantillonnage dans l'air, Air sampling, Travail manuel à l'abrasif, Manual abrasive operation, Polisseuse, Polishing machine, Poussière minérale, Mineral dust

Numéro de projet IRSST

2010–0058

Citation recommandée

Kouam, J., Songmene, V., Bahloul, A. et Samuel, A. M. (2022). Characterization of Si and SiO2 in dust emitted during ganite polishing as a function of cutting conditions. Materials, 15(11). https://doi.org/10.3390/ma15113965