Problems and countermeasures in the use of cutting fluid
Cutting fluid is an important part of machining process. Its functions mainly include cooling, reducing friction, reducing tool wear, preventing corrosion, improving surface finish and cleaning chips. In the process of using cutting fluid, there are novices or users in the industry who have encountered various problems. The following are the common problems and countermeasures of cutting fluid in the process of use.
1.The cutting fluid is easy to become turbid. Turbidity means that the cutting fluid appears milky white or has a large amount of sediment due to its own degradation or when impurities are added. If this problem occurs, it will reduce the cooling effect of cutting fluid and affect the machining accuracy and surface quality.
Solution: One is to equip a filtration system or periodic filtration of cutting fluid to remove sundries or rust and other pollutants from the cutting fluid. The other is to replace the cutting fluid in time and regularly.
2.The cutting fluid is easy to foam. Foaming is mostly caused by standing cutting fluid or high-speed turning, milling and grinding. Foaming can have a bad influence on the cooling effect of cutting fluid, and even make the cutting fluid splash which affects the safety of operators and equipment.
Solution: To reduce the foaming of cutting fluid, antifoaming agents should be added, or an aerating tank should be added to reduce the foaming caused by rapid cutting.
3.The cutting fluid is prone to oxidation. Oxidation of cutting fluid is mostly caused by poor storage, irregular changing and unscientific using. Cutting fluid oxidation will corrode the machine parts such as cutting tool and guide sleeve, and affect the appearance of cutting surface.
Solution: Pay attention to the storage of cutting fluid and airtight storage. Regular replacement of cutting fluid. When using cutting fluid, it is necessary to follow the process to add emulsifier, biological inhibitor and other additives in time, prevent high temperature and keep PH index at 7.
In conclusion, when using cutting fluid, it is necessary to pay attention to the control of concentration, cutting fluid temperature, PH value, sediment removal, antifoaming cooling, addition or replacement of additives, in order to make cutting fluid play a major role of cooling, lubrication and cleaning.
