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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 properly maintain and repair automatic transmission

While automatic transmission models are becoming more and more popular, the maintenance frequency of automatic transmissions is also increasing. Industry experts pointed out that most car owners do not know how to properly maintain and repair automatic transmissions. It is often not until the need for maintenance that it turns out that its maintenance cost is higher than repairing the engine.

Misunderstanding 1: No need to change oil

Many car owners have not developed the awareness of changing automatic transmission oil. The replacement of inferior oil and not changing the oil according to the model will also cause the “short life” of the automatic transmission.

Misunderstanding 2: Change only when the quality changes

The replacement cycle of automatic transmission oil is based on the number of kilometers traveled or the time of use. If the vehicle user manual does not indicate it, it will be replaced according to the mileage of 60,000-80,000 kilometers.

Misunderstanding 3: Two oil change methods

The “hand change” operation is convenient and time-consuming. The disadvantage is that the oil change is not thorough, and only one-fourth to one-third of the old oil can be drained, which is about 4 liters.

The whole process of “machine replacement” takes about 1 hour and requires about 12 liters of oil. The advantage of this oil change method is that the oil change is more thorough and can drain more than 85% of the old oil.

It is worth noting that both oil changes must be performed when the engine is started. When replacing the automatic transmission fluid, it must be in the state of a hot car during operation. You should drive for more than 20 minutes before the replacement. Do not change the oil when the car is cold. When changing the oil, start the engine and switch the gears from P gear to N, D, L1, L2 and other gears, and then start changing the oil.

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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