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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

How to solve the poor heat dissipation of automobile engines and air conditioning systems

Car engine and air-conditioning system have poor heat dissipation, resulting in excessively high water temperature. The following fault phenomena and solutions will occur: 1. When the traffic is not smooth-traffic jam or long idling, the engine water temperature gauge shows too high, and the electronic fan works in high-speed gear. If it is too long, the engine noise will increase. If the temperature is too high, the malfunction* will be obvious when the air conditioner is turned on. Related reading: Scientific and reasonable maintenance of your car helps you save unnecessary money and avoid ten misunderstandings in car maintenance

Solution: After the car is hot, check the water return of the return pipe at the upper end of the antifreeze storage tank. If the return water is not smooth or blocked, the water temperature will be too high.

Reminder: Do not blindly disassemble and replace parts during maintenance.

2. When the air temperature is too high and the air conditioner is turned on, the idling speed is unstable and the speed fluctuates too much, the acceleration is weak, and the engine makes abnormal noise.

Solution: Check whether there is too much dust between the condenser and the water tank, and clean it thoroughly with high-pressure air to ensure that the water tank and the condenser have good heat dissipation performance.

Reminder: usually pay attention to wipe the dust between the condenser and the water tank.

3. After a hot car is turned off for more than ten minutes, it is not easy to start the car; when a hot car is running, it will sometimes turn off automatically.

Solution: When the car is hot, check the temperature difference between the upper and lower water pipes of the water tank. If the temperature difference is too large, you need to check the opening of the thermostat and whether the water pump has rotation speed failure.

Reminder: The temperature difference between the upper and lower water pipes of the water tank should not be too large.

4. When the car is cold, the air-conditioning refrigeration temperature is very cool, and the cooling effect of the air-conditioning is not obvious when the car is hot; and there is a large resonance hum in the air-conditioning system.

Solution: Due to the irregular addition and replacement of antifreeze, the engine water channel and water tank will be blocked in advance and the water temperature will be high. The antifreeze is replaced once every two years, and original parts must be used when replacing and adding.

Reminder: After adding water to the engine cooling system, or the concentration of the added antifreeze exceeds 60%, it will cause the water temperature to be too high.

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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