At present, the environment, resources and population have become the three major problems facing the world. The degree of deterioration of the global environment and the rapid increase in the number of days are posing a serious threat to the survival and development of human society. On the one hand, manufacturing is a pillar industry that creates human wealth, but at the same time it is the main source of environmental pollution. With the improvement of human environmental awareness and the restrictions on cutting fluids introduced by various countries, “green manufacturing technologyâ€, “environmentally sound technologyâ€, “clean production†and “industrial ecology†can meet production needs. The term of rational use of resources has increasingly attracted people's attention. The greening of the manufacturing process has also become the focus of competition in today's countries. Micro-lubrication technology - MQL (MinimalQuantity Lubrication) is a small amount of pollution-free oil mist mixed in the compressed gas, instead of a large amount of cutting fluid to cool and clean the cutting point. MQL is an effective green manufacturing technology. The cutting fluid is supplied by high-speed fog particles, which increases the permeability of the lubricant, improves the cooling lubrication effect, and improves the surface processing quality of the workpiece. The amount of cutting fluid used is only the traditional cutting fluid. One ten-thousandth of the amount, which greatly reduces the cost of the coolant, keeps the cutters, workpieces and chips outside the cutting area dry, avoids the problem of treating the waste liquid; MQL can specify the optimum concentration of lubrication according to the working conditions, and eliminate The contamination of suspended silicon particles in the cutting fluid improves the working environment of the workers; the MQL system is simple, small in footprint, and easy to install on various types of machine tools. Microlubrication mechanism During the processing, the tool and the metal contact surface generate high temperature. Under the cooling effect of the traditional cutting fluid, the high-heat solid metal will rapidly cool to produce a quenching effect, and the metal surface will produce a quenched martensite structure, which makes the metal hard and the brittleness is enhanced. Since the quenching effect is proportional to the temperature difference, increasing the cutting speed will result in a higher temperature, so increasing the speed will result in a stronger quenching effect resulting in a lower tool life. Lubricants in micro-lubrication systems are fed in micron-sized haze without quenching effects. In the case where the tool is not overheated by the Xu Hanguang tool, the cutting speed is increased, and the fracture point of the workpiece cutting layer will appear earlier, that is, the cutting break point will be far away from the tool tip, so that the high temperature of the breaking point is difficult to pass to the tool tip. The cutting heat is concentrated on the workpiece and the chip. The only heat source of the tool is only the contact point with the chip. The increased cutting speed also makes the chip easy to bend and leave the workpiece and the tool at high speed, thus effectively reducing the cutting heat of the chip. In addition, a suitable high temperature softens the surface of the workpiece, reduces cutting forces, and is easier to cut. Key issues in micro-lubrication technology Micro Lubrication Quantity Quantity Lubrication (MQL) or approximate dry cut NearDry Machining (NDM). It is atomized with a small amount of liquid lubricating oil or emulsion and mixed with compressed air and then sprayed into the processing area to effectively cool and lubricate the processed part between the tool and the workpiece. Lubricating materials are usually consumed at (5-100) ml/min, and most of them use lubricating materials that are environmentally friendly. The degree of atomization depends on the ratio of oil to water and the size of the particles. Generally, the water content is high and the particle size is small. The primary function of micro-lubrication is lubrication, which reduces friction, reduces cutting heat and improves chip flow. Larger Outer Diameter Steel Pipe,Thermal Expansion Pipe,Seamless Steel Pipe,Large-Diameter Welded Steel Pipe Tianyi Steel Pipe Co., Ltd. , http://www.czseamlesspipe.com