Cutting fluid.
1)
Cooling effect: Cutting heat can take away a large amount of cutting heat, improve heat dissipation conditions, and reduce the temperature of the tool and workpiece, thus prolonging the service life of the tool and preventing the size error caused by thermal deformation of the workpiece.
Lubrication: The cutting fluid can penetrate between the workpiece and the tool, so that a thin adsorption film is formed in the small gap between the chip and the tool, which reduces the friction coefficient. Therefore, it can reduce the friction between the tool chip and the workpiece, reduce the cutting force and cutting heat, reduce the wear of the tool and improve the surface quality of the workpiece. Quantity, for finishing, lubrication is particularly important.
Cleaning effect: The tiny chips generated during the cleaning process are easy to adhere to the workpiece and tools. Especially when drilling deep holes and twist holes, the chips are easily blocked in the chip-concelerant groove, affecting the surface roughness of the workpiece and the service life of the tool. Using the cutting fluid can quickly wash the chips away, and the cutting is carried out smoothly.
2) Type: There are two types of commonly used cutting fluids.
Emulsifier: It mainly plays a cooling role. The emulsion dilutes the emulsion oil with 15-20 times water. This kind of cutting fluid has a large specific heat, low viscosity and good fluidity, and can absorb a large amount of heat. This kind of cutting fluid is mainly used to cool tools and workpieces, improve tool life and reduce thermal deformation. There is more water in the emulsion, and the lubrication and anti-rust functions are poor.
Cutting oil: The main component of cutting oil is mineral oil. The specific heat of this kind of cutting fluid is small, the viscosity is large, and the fluidity is poor. It mainly lubricating. It is commonly used for mineral oils with low viscosity, such as oil, light diesel, kerosene, etc.
