Investigating submicron particle generation in machining: The role of coolants and operational conditions
Year: 2025
Type: conference-paper
Abstract: . Submicron particles in industrial environments pose significant health risks due to their ability to penetrate deep into the lungs, leading to respiratory and long-term health effects. The novelty of this study lies in its focus on submicron (< 1 µm) particle generation in machining environments, an area that has received little attention compared to measuring larger particle sizes (2.5 to 10 µm). Particle emissions were analysed under different cooling/lubrication methods, spindle speeds, and mist extraction conditions. Conventional emulsions were compared with alternative coolants using liquid carbon dioxide (LCO₂) and LCO₂+MQL under varying operational parameters. Results indicate that LCO₂+MQL produces the highest particle concentrations, particularly at high spindle speeds, whereas LCO₂ achieves near-background air quality. Mist extraction significantly reduces exposure, emphasizing the need for proper coolant selection and ventilation.
Source: Materials research proceedings
Author: Iñigo RODRIGUEZ
Institution: Mondragon Unibertsitatea
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Funder: Division of Materials Research
OpenAlex ID: W4410029348