(1) The cutting fluid should have no irritating odor and contain no additives harmful to human body to ensure the safety of users.
(2) The cutting fluid should meet the requirements of equipment lubrication and protection management, i.e. the cutting fluid should not corrode the metal parts of the machine tool, not damage the machine tool seals and paint, and not leave hard gelatinous deposits on the machine tool guide to ensure the safety and normal work of the equipment.
(3) The cutting fluid should ensure the role of anti-rust oil between workpiece processes and not rust the workpiece. When processing copper alloy, cutting fluid containing sulfur should not be used. When processing aluminum alloy, cutting fluid with neutral PH value should be used.
(4) The cutting fluid should have excellent lubrication performance and cleaning performance. Choose the cutting fluid with high PB value and small surface tension without maximum card bite load, and evaluate the good effect by cutting test.
(5) The cutting fluid should have a long service life, which is especially important when machining centers.
(6) The cutting fluid should try to adapt to a variety of processing methods and a variety of workpiece materials.
(7) The cutting fluid should be low-pollution and have a waste fluid disposal method.
(8) Cutting fluid should be suitable in price and convenient in preparation. To sum up, when users choose cutting fluid, they can select 2 to 3 kinds of cutting fluids with good overall performance according to the specific processing situation, and then try them out in the factory to determine the cutting fluid with suitable price to meet the processing technology requirements of the factory.