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摘要

Metalworking fluid - also known as cutting fluid - is a type of coolant used during metalworking processes such as machining, grinding and milling. It is typically neat oils or water-based fluids used to reduce the heat and friction between the cutting tool and the workpiece, helping to prevent burning and smoking. As well as providing lubrication and cooling, metalworking fluid also helps to carry away debris such as swarf and fine metal particles. It helps to improve machining performance and prolong the life of the cutting tool, as well as provide corrosion protection for the surfaces of workpieces. There are three general types of metalworking fluid: water-soluble oils (emulsions), semi-synthetic fluids and synthetic fluids, which include oils, oil-water emulsions, pastes, gels, aerosols (mists), and air or other gases. These may be made from such elements as petroleum distillates, animal fats, plant oils, water and air.