Circulating purification of cutting fluid: an overview

Area of Science:

• Materials Science
• Environmental Engineering
• Mechanical Engineering

Background:

• Cutting fluids are crucial for metal machining but cause significant environmental pollution due to harmful additives and poor biodegradability.
• Existing research lacks systematic reviews on eco-friendly cutting fluids and waste treatment, hindering industrial application.

Purpose of the Study:

• To systematically review and clarify scientific issues in eco-friendly cutting fluid preparation and waste fluid treatment.
• To provide scientific and technical guidance for sustainable practices in metal machining.

Main Methods:

• Summarized organic additive preparation and mechanisms.
• Analyzed the influence of vegetable base oil properties on lubrication.
• Evaluated cutting fluid reduction supply methods.
• Outlined oil mist/miscellaneous oil treatment, microorganism removal, and integrated recycling equipment design.

Main Results:

• Synergistic effects of organic additives, biodegradable vegetable base oils, and recycling purification were found to effectively reduce environmental pollution.
• Key scientific issues in eco-friendly cutting fluid research and waste treatment were clarified.

Conclusions:

• The combination of advanced additives, sustainable base oils, and efficient recycling is key to mitigating the environmental impact of cutting fluids.
• Future prospects include amino acid additives, adaptive supply systems, and optimized processing condition matching for enhanced sustainability.