Circulating purification of cutting fluid: an overview

• Published in: International journal of advanced manufacturing technology Vol. 117; no. 9-10; pp. 2565 - 2600
• Main Authors: Wu, Xifeng, Li, Changhe, Zhou, Zongming, Nie, Xiaolin, Chen, Yun, Zhang, Yanbin, Cao, Huajun, Liu, Bo, Zhang, Naiqing, Said, Zafar, Debnath, Sujan, Jamil, Muhammad, Ali, Hafiz Muhammad, Sharma, Shubham
• Format: Journal Article
• Language: English
• Published: London Springer London 01.12.2021; Springer Nature B.V
• Subjects: Additives; Amino acids; Biodegradability; CAE) and Design; Chemical properties; Computer-Aided Engineering (CAD; Critical Review; Cutting fluids; Design for recycling; Engineering; Industrial and Production Engineering; Lubricating properties; Machining; Mechanical Engineering; Media Management; Microorganisms; Oil mist; Purification; Recycling equipment; Synergistic effect; Vegetables; Minimum quantity lubrication; Cutting fluid; Additive; Circulating purification; Base oil; Mechanism
• ISSN: 0268-3768; 1433-3015
• DOI: 10.1007/s00170-021-07854-1

Cutting fluid has cooling and lubricating properties and is an important part of the field of metal machining. Owing to harmful additives, base oils with poor biodegradability, defects in processing methods, and unreasonable emissions of waste cutting fluids, cutting fluids have serious pollution problems, which pose challenges to global carbon emissions laws and regulations. However, the current research on cutting fluid and its circulating purification technique lacks systematic review papers to provide scientific technical guidance for actual production. In this study, the key scientific issues in the research achievements of eco-friendly cutting fluid and waste fluid treatment are clarified. First, the preparation and mechanism of organic additives are summarized, and the influence of the physical and chemical properties of vegetable base oils on lubricating properties is analyzed. Then, the process characteristics of cutting fluid reduction supply methods are systematically evaluated. Second, the treatment of oil mist and miscellaneous oil, the removal mechanism and approach of microorganisms, and the design principles of integrated recycling equipment are outlined. The conclusion is concluded that the synergistic effect of organic additives, biodegradable vegetable base oils and recycling purification effectively reduces the environmental pollution of cutting fluids. Finally, in view of the limitations of the cutting fluid and its circulating purification technique, the prospects of amino acid additive development, self-adapting jet parameter supply system, matching mechanism between processing conditions and cutting fluid are put forward, which provides the basis and support for the engineering application and development of cutting fluid and its circulating purification.