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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

Six points of attention to auto tire self-inspection

As the "foot" of a car, tires usually serve the host silently. However, it is such a critical part that *is easy to be "outsided" by others. Today we will teach you a few precautions for self-inspection of tires.
pierce the hole:
Have your car tires been punctured? If so, how long ago was it? In fact, for a car that has been repaired, even if it is no problem to use it temporarily, its endurance under extreme load will be much lower than before. In addition, if there are more than 3 holes in the same tire, it is recommended that you replace the tire as soon as possible.
drum kit:
When a car drives through pits, obstacles and road edges at high speeds, the tires locally will be severely deformed under the huge impact force, and the internal pressure will increase instantaneously. The direct consequence of this is that the tires will bulge.The tires that have been bulged must be replaced immediately, otherwise there is a risk of a tire blowout.
pattern:
Generally speaking, the tires of a family car in normal use can be replaced every 60,000 kilometers or two years, but tires with severe pattern wear should be replaced early. Nowadays, repair shops have pattern wear scales, and car owners can buy one to check the pattern wear of their tires at any time. In addition, increased tread cracks are also a sign of serious tire aging. Usually, car owners can properly spray some tire protection wax, and try not to press corrosive liquids when driving.
Air pressure:
For a front-wheel drive vehicle, the front wheels sometimes look a little flat because the engine, gearbox and other important drive components are pressed on the front. The visual inspection is inaccurate, you must use a dedicated tire pressure gauge to measure whether the tire pressure is normal.
石子:
Some car owners often hear that their car makes noises when driving, but there is no malfunction when driving. At this time, you should check if there are any small stones stuck in the tire pattern. In fact, it can be solved by taking the time to dig out these small stones in the tread pattern with the key.
Spare tire:
If you want the spare tire to play a real emergency role, you should also pay attention to its maintenance at ordinary times. First of all, check the pressure of the spare tire frequently; secondly, pay attention to the prevention of oil corrosion on the spare tire. The tire is made of rubber, so you are afraid of being corroded by various oils. The tires will bulge and corrode soon after being stained with oil, which will greatly reduce the service life of the tires; *After that, the life of the spare tire is about 4 years. Many car owners mistakenly believe that the spare tire is always new if it is not used, but it is actually over. Even if the spare tire has not been used once in 4 years, it needs to be replaced, otherwise the spare tire will become a waste tire.

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