TITLE:
Effects of machining conditions on specific surface of PM2.5 emitted during metal cutting
AUTHORS:
Abdelhakim Djebara, Victor Songmene, Ali Bahloul
KEYWORDS:
Aluminum Alloys; Air Quality; Dust Emission; Dry Machining; PM2.5; Specific Surface
JOURNAL NAME:
Health,
Vol.5 No.10B,
October
30,
2013
ABSTRACT: Indoor air quality has become an important matter for health and safety. Most manufacturing processes generate aerosols. In the metal cutting industry, dry machining processes are accompanied by dust emission (fogs, fine chips and metallic dust in both micrometers and nanometers scales) that has impacts on workers’ health. This research work aimed to understand and reduce the harmful impacts of the machining process on the occupational safety. In this study, an experimental investigation was carried out on fine and ultrafine metallic dust emission during slot milling of 2024-T351, 6061-T6 and 7075-T6 aluminum alloy in dry conditions. It was confirmed that the cutting conditions influence significantly the specific surface area of ultrafine particles. It was also found that the cutting speed is a determinant factor for specific surface area of ultrafine particles and control during the slot milling process.