Metal cutting fluid lubrication: (hereinafter referred to as cutting fluid) in the process of cutting, lubrication, reduces the rake face and chip, after the blade surface and the machined surface, the friction between form part of the lubricating film, so as to reduce the cutting force, friction and power consumption, reduce billet friction parts of the cutter and workpiece surface temperature and tool wear and improve the machinability of workpiece materials.
In the process of grinding, join after grinding fluid, grinding fluid infiltration - workpiece and grinding emery wheel grinding grain - lubricating film formed between abrasive dust, reduce the friction between the interface, prevent the cutting edges are abrasive wear and adhesion chip, so as to reduce the grinding force and friction heat, improve the durability of grinding wheel and workpiece surface quality.
Cooling: cooling effect of cutting fluid is through it and fever due to cutting tool or grinding wheel, convection between the chip and workpiece and the vaporization heat cutting away from the cutting tool and workpiece, effectively reduce the cutting temperature, reduce the thermal deformation of workpiece and tool, keep the tool hardness, improve the machining precision and tool life. The cooling properties of the cutting fluid are related to thermal conductivity, specific heat, vaporization heat and viscosity (or fluidity). The thermal conductivity and specific heat of water are higher than oil, so the cooling performance of water is better than that of oil.
Cleaning: in the process of metal cutting, a good cleaning function is required for cutting fluid. Remove the cuttings, grinding dust, iron powder, grease and sand, prevent the contamination of machine tools and workpieces and tools, and keep the cutting edge of cutter or grinding wheel sharp without affecting the cutting effect. For oil - based cutting oil, the lower the viscosity, the stronger the cleaning ability, especially the cutting oil, including kerosene, diesel and other light components, the better the permeability and cleaning performance. Containing surfactant aqueous cutting fluid, cleaning effect is better, because it can in the adsorption film is formed on the surface, prevent particle and sludge adhesion on the workpiece, cutting tool and the grinding wheel, at the same time it can seep into the particles and sludge interface on adhesion, separated from the interface, it along with the cutting fluid to go, keep the cutting fluid clean.
Antirust function: in the process of metal cutting, the workpiece to environmental medium and cutting fluid component decomposition of the sludge and the oxidation and corrosion of corrosive medium, such as contact, contact with the cutting fluid of the surface of the machine tool parts also suffer from corrosion. In addition, after the workpiece machining or between processes flow process, the temporary storage also requires cutting fluid has certain rust resistance, prevent environmental medium and corrosive material such as residual sludge of cutting fluid for metal erosion.
Other effects: except for the above four functions, the cutting fluid used should have good stability, which does not produce precipitation or stratification, disoil, soap and aging in storage and use. It has certain resistance to bacteria and mold, not to be mildew and biodegradation, which can lead to stink and deterioration. Do not damage the paint parts, no harm to the human body, no pungent smell. No smoke, fog, or smoke during use. It is easy to recycle, low pollution, waste liquid disposal is easy to deal with, and can meet the industrial sewage discharge standard stipulated by the state after treatment.