Does every cutting fluid need to have rust protection? In fact, it depends on the specific application scenario and material of the cutting fluid you are using.
If you are using rust-prone metal materials, such as iron and steel, which are prone to react with oxygen in the air to form oxides during the cutting process, thus leading to rust on the surface of the workpiece, the rust prevention performance of the cutting fluid is particularly important.
For some metal materials that are not easy to rust, such as aluminum, copper, etc., these metal materials in contact with the air generated by the oxide can usually form a layer of dense protective film, effectively preventing further oxidation and corrosion, this time, the anti-corrosion performance of the cutting fluid appears to be relatively minor.
Therefore, for easy to corrosion of metal materials, the choice of anti-corrosion performance of the cutting fluid is a wise choice to ensure the quality of the surface of the workpiece and precision; for metal materials that are not easy to corrosion, the anti-corrosion performance of the cutting fluid can not be an important factor to consider.
