Deep hole processing is the processing of holes having a hole depth to diameter ratio of 5 or more. In the machining industry, the processing of holes is relatively large, but the service life of the drill bit and the quality of the machined holes are difficult to guarantee in the processing of deep holes. Improving the service life and processing efficiency of the drill bit is the research direction of hole machining. On the one hand, deep hole machining should select a suitable drill bit to improve the processing quality. On the other hand, to choose the right lubrication system, the ideal lubrication method can improve the life of the cutting tool and the surface quality of the workpiece.
In deep hole drilling, traditional lubrication techniques use a large amount of cutting fluid to achieve lubrication and cooling. This type of lubrication requires a large amount of cutting fluid, and the cutting fluid is sprayed onto the equipment and work site for the environment and the body. Will have an adverse effect. In the cutting process, it is difficult to reach the machining action surface by using high-pressure cutting fluid, and the cooling and lubrication effects are greatly reduced. The recycling and disposal costs of the cooling waste liquid are also getting higher and higher, and the problem of the lubrication method of the cutting fluid is more prominent. Oil mist micro-lubrication cooling method is suitable for new processing, which can avoid the problem of waste oil recovery and pollution. At the same time, the reliable lubrication effect improves the surface quality and prolongs the service life of the drill bit.
The drill bit with the inner cold hole appears, and the use of oil mist lubrication makes the oil mist deep hole drilling process more reliable. The adaptive solution also enables the deep hole drilling micro-lubrication technology to play a better role. The deep hole drilling micro-lubrication system has been widely used in crankshaft oil holes and engine casings in the field of automotive machining.
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