Journal
TRIBOLOGY-MATERIALS SURFACES & INTERFACES
Volume 12, Issue 3, Pages 130-136Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/17515831.2018.1479093
Keywords
Boundary lubrication; metalworking fluid; nano-tribology; lubricant additives
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Funding
- Indian Institute of Technology Delhi
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Oil-in-water emulsions are used as metalworking fluids (MWFs). Considering the environmental issues and operator's health, the amount of oil-in-MWFs is one of the important parameters. In the present study, paraffin oil is used for emulsion formulation and possibilities to minimize the amount of paraffin oil-in-MWFs are explored. Physical characterization of emulsions is done using dynamic light scattering and goniometer. The tribological response of emulsions is recorded using the Four-ball tester. Results indicate that the amount of oil can be brought down to a level of 0.5% v/v to achieve the standard friction level. Droplet size and distribution seems to control the lubricity of emulsions, smaller droplets are desired for better lubrication.
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