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Related Experiment Videos

Mist generation from metalworking fluids formulated using vegetable oils.

Peter C Raynor1, Seung Won Kim, Mrinal Bhattacharya

  • 1Division of Environmental Health Sciences, University of Minnesota, Minneapolis, MN 55455, USA. praynor@umn.edu

The Annals of Occupational Hygiene
|January 11, 2005
PubMed
Summary
This summary is machine-generated.

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Vegetable oil-based metalworking fluids, particularly air-oxidized soybean oil, show promise for reduced misting compared to petroleum-based options. These eco-friendly formulations may offer environmental and cost benefits in machining applications.

Area of Science:

  • Materials Science
  • Environmental Engineering
  • Tribology

Background:

  • Petroleum-based metalworking fluids pose environmental and disposal challenges.
  • Vegetable oil-based emulsions offer a potentially less toxic and more sustainable alternative.
  • Understanding mist formation mechanisms is crucial for fluid performance and workplace safety.

Purpose of the Study:

  • To evaluate mist production rates of soybean oil-based metalworking fluid emulsions.
  • To compare the performance of experimental vegetable oil emulsions against commercial vegetable and mineral oil-based fluids.
  • To identify promising soybean oil formulations for reduced misting.

Main Methods:

  • Experimental metalworking fluid emulsions were prepared using unmodified and modified soybean oils.

Related Experiment Videos

  • Mist production was measured using impaction, centrifugal force, and evaporation/recondensation methods.
  • Results were benchmarked against commercial vegetable oil and mineral oil-based metalworking fluid emulsions.

    • Main Results:

    • Most experimental soybean oil emulsions produced comparable mist to commercial vegetable oil fluids via impaction.
    • Experimental fluids generated more mist than petroleum-based fluids through centrifugal force.
    • An air-oxidized modified soy oil demonstrated lower misting than petroleum-based fluids via impaction.
    • Experimental fluids showed significantly reduced misting (30-90%) via evaporation/recondensation compared to commercial fluids.

    Conclusions:

    • Soybean oil-based metalworking fluids can effectively reduce mist formation, especially through evaporation/recondensation.
    • Air-oxidized soybean oil emerged as a highly promising candidate for reduced misting in machining.
    • Further testing under realistic machining conditions is recommended for the air-oxidized soybean oil formulation.