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Working principle of slow wire processing

 Slow wire walking, also called low-speed wire walking, is a kind of CNC machining machine tool that uses continuously moving fine metal wire as an electrode to pulse spark discharge on the workpiece to generate a high temperature of over 6000 degrees, ablate metal and cut into a workpiece. The principle of wire processing is the phenomenon that there is a gap between the wire electrode and the workpiece, and the metal is removed by continuous discharge. Since the slow-moving wire cutting machine adopts the method of wire electrode continuous feeding, that is, the wire electrode is processed during the movement, so even if the wire electrode is worn out, it can be continuously supplemented, so it can improve the machining accuracy of the parts and slow the wire. The surface roughness of the workpiece processed by the cutting machine can usually reach Ra=0.8μm and above, and the roundness error, linear error and dimensional error of the slow-moving wire cutting machine are much better t

Classification of CNC Machining Occupation Levels

1. Blue-collar layer:   That is, CNC machining operation technicians, proficient in machining and CNC machining process knowledge, proficient in the operation and manual programming of CNC machine tools (attributes: automated machine tools), understand automatic programming and simple maintenance of CNC machine tools (attributes: automated machine tools), such There is a large market demand for personnel, and they are suitable for operating workers of CNC machine tools (attributes: automated machine tools) in the workshop, but due to their single knowledge, their wages will not be much higher.   2. Gray collar layer:   One, CNC machining programmer:   Master the knowledge of 5 Axis CNC machining Aluminum   technology and the operation of CNC machine tools (attributes: automated machine tools), be familiar with the design and manufacturing expertise of complex molds (title: mother of industry), and be proficient in 3D CAD/CAM software, such as UG, GOOGLE PRO/E, etc. ; Familiar with CNC

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.   CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200   beryllium   copper   and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and lette

Turning machining MQL replaces cutting fluid

Most of the current lathe cutting lubrication is the use of cutting fluid, this method will have a great impact on the working environment, the processing of cutting fluid is also very heavy work, and also requires a lot of costs. The micro-oil mist lubrication technology of the lathe effectively solves the above problems. <br /> In lathe processing, the amount of back-cutting, feed, and linear cutting speed are all factors that can affect processing quality and processing efficiency. In order to improve the influence of cutting fluid on the machining environment and lathe maintenance, it is necessary to study the application of micro-oil mist lubrication technology on lathes. The advantages of this lubrication method are as follows:<br /> 1. The machine tool does not need to consider the protection design to prevent leakage, it has a good protection for the machine tool electrical system, which can increase the life of the electrical system and reduce the maintenance cost;<br /> 2. It can save floor space;<br /> 3. It can obtain better processing quality and higher processing efficiency;<br /> 4. It can increase the processing life of the tool. <br /> There are two types of micro-lubrication devices: oil mist lubrication devices and oil-air lubrication devices. Oil mist lubrication is a lubrication method in which vegetable oil is atomized into micron-sized particles and then passed directly to the cutting area through an external nozzle or through the internal cooling channel of the tool holder. Oil-air lubrication is a lubrication method in which a small amount of lubricating oil is accurately metered, and compressed air is brought to the nozzle and then the lubricating oil is torn into mist particles by the compressed air and sprayed to the cutting part. Due to the low consumption of lubricating oil in this kind of lubrication method, the use of lathe micro-lubrication method can achieve very high linear speeds. The difference between oil mist and oil and gas is that the response time of oil mist is fast. Both use compressed air as the conveying medium. Therefore, the size and stability of the compressed air pressure directly affect the good operation of the micro-oil mist lubrication device of the lathe. The air source pressure of the micro-oil mist lubrication system of the lathe is required to be 5-7bar. When the air source pressure is increased to 8-10bar, a better atomization percentage rate can be obtained, and the oil mist delivery capacity is greatly enhanced. <br /> If the cutter head nozzle of the CNC lathe only needs to change the nozzle inner hole diameter according to the actual demand, the transition from cutting fluid lubrication to trace oil mist lubrication can be realized, and the consumption of oil can be reduced, bringing more High economic value. <br />

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