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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

Use MEP electromagnetic oil pump to solve the problem of cold start and make some discussion

 

Modern power electronics technology. The defense industry uses electromagnetic fuel pumps to improve the cold start of vehicles. The cold start of vehicles has always been a problem that many domestic automobile manufacturers and users often pay attention to and research. The cold start problem of vehicles involves many factors. This article discusses the use of MEP electromagnetic fuel pump to solve the cold start problem.

General vehicles, especially diesel locomotives, are more difficult to start under the climatic conditions of minus 20-40°C in northern China. Although diesel locomotives have a preheating device, the amount of oil delivered by the mechanical oil pump is determined by the mechanical frequency. When idling, the mechanical frequency is not high. In addition, due to the low temperature, the retardation of diesel increases. In addition, mechanical pumps have many oil seals, which are easy to leak, etc., so the oil volume cannot keep up when starting at low temperatures and cannot be exhausted quickly to purify the oil circuit. In recent years, the series of electromagnetic fuel pumps developed by Shanghai Jiaotong University and produced by Shanghai Guangyin Communication Electric Industrial Company have solved the above problems well. The MEP electromagnetic oil pump is produced by using new materials and new technology. It adopts modular working mode. It is small in size, high in power, and easy to assemble. The most important thing is that the series is complete, the reliability is good, and the continuous work can reach more than 2000h. Many indicators are Exceeds the Japanese JISD industrial standard. In recent years, it has been used well on some large and medium-sized vans and military vehicles, and has been widely welcomed by users.

In addition, since the power source of the electromagnetic oil pump is fundamentally different from that of the mechanical pump, its use under normal circumstances also brings many benefits. For example, the oil circuit of some large vehicles can be lengthened, which is conducive to frequent starting of the vehicle, and it is not easy to stall when the vehicle is climbing. Electric exhaust is far more convenient than manual exhaust. Of course, for gasoline cars, the air resistance can be greatly reduced in summer. In short, MEP electromagnetic oil transfer pump has many advantages over mechanical pumps. As long as the reliability of electromagnetic oil transfer pump is recognized by the market, its application prospects should be very broad.

The automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

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