In the mechanical industry, cutting fluids are widely used in various cutting processes, such as turning, milling, grinding, drilling, etc. to optimize the processing parameters.
In the development of cutting fluid technology, we can see two characteristics: the number of cutting fluid products is increasing, the types are more complete, and the functions are becoming more and more detailed. For different processing methods, there are corresponding cutting fluids corresponding to it. Second, the cutting fluid technology is becoming more and more perfect, so the processing efficiency can be continuously improved.
In addition, with the rapid development of modern manufacturing industry and people's increasing attention to environmental protection, cutting fluid technology is also in the cycle of improvement and updating, and new cutting processing technologies are constantly emerging.
Development status of cutting fluid technology:
Cutting fluid processing
Faced with the maturity of the cutting fluid market and the diversification of cutting fluid products, the International Standards Organization and some industrialized countries have formulated relevant cutting fluid classification standards. The American Materials Association has developed ASTM D2881-03, a classification standard for metalworking fluids and related materials. The Japanese Standards Association also formulated a new cutting fluid standard JIS K2241 in 2000.
In 1989, China formulated the national standard GB / T7631.5-1989 "Classification of Lubricants and Related Products (Class L) Part 5: Group M (Metal Processing)", which classifies metal processing lubricants into two categories, That is, the processing type that focuses on lubricity and the processing type that focuses on cooling. It is worth mentioning that, similar to the standards formulated by the American Materials Association, these classification standards in China include lubricants used in metal forming processes, such as forging, stamping, drawing, and rolling, instead of the removal processes discussed in this article. (I.e., cutting) type lubricants, so I will not repeat them here.
Although the various classification standards are different, according to the composition and state of the cutting fluid, they are roughly divided into two categories, water-based and oil-based.
Water-based cutting fluids need to be diluted with water before use. They can be divided into emulsified cutting fluids, micro-emulsified cutting fluids, and synthetic cutting fluids according to the diluted state. The cutting fluid processing emulsified cutting fluid generally does not contain water, and the cutting fluid prepared with water is milky; the synthetic cutting fluid is generally oil-free, so it can be miscible with water, and the prepared cutting fluid is mostly transparent; The oil content (that is, the content of oily additives) is small, while the content of surfactants and anti-agents is large. After adding water, it is translucent and slightly emulsified, and the appearance is between the first two.
Oil-based cutting fluid (also known as cutting oil) is generally used directly, and its basic component is base oil. According to different processing needs, various additives with different properties are added to form different types of cutting oils. Oil-based cutting fluids can be roughly divided into pure mineral oil, pure synthetic oil, active extreme-pressure cutting oil, non-active extreme-pressure cutting oil, and anti-friction cutting oil according to the different base oils and additives.