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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

Precautions for car maintenance after rain

Summer is here, heavy rain and light rain continue to cool down the cities everywhere, people are more comfortable, and the cute car has experienced wind and rain. The rain has stopped, it’s time to do maintenance for your car, or symptoms such as mildew in the car and unlit car lights may come to your troubles.

**Step: Dehumidification inside the car

In fact, the work of dehumidification should be done when it rains. When it rains, the cold wind should be turned on. This can not only remove the fog, but also dehumidify. Pay more attention when the rain stops. The accumulated moisture must be removed as soon as possible, otherwise conditions such as mildew will easily occur. In addition to turning on the air conditioner to dehumidify the car, it is best to buy a simple dehumidification box, so that the parts in the car will not be susceptible to moisture after overnight. In addition, putting a roll of toilet paper in the car also has the effect of dehumidification.

In addition to the welding of the door and the welding part of the car body, it is easy to rust and corrode after the rain. The hinges, locks and other iron parts inside the door are also easy to get damp because they are covered by the door trim. Therefore, the owner can find a shade when it is sunny. Wherever possible, open all the doors and trunk covers to allow the moisture in the car to drain and ventilate, and then remove the foot pads and seat covers in the car, rinse and dry.

Step 2: Sterilize inside the car

After the rain in summer, due to temperature and other factors, it is easier to breed various germs, so it is particularly important to disinfect and sterilize the interior of the car. The key areas to be cleaned should be seats, air-conditioning outlets, central control panels and dead corners. You can use a professional car interior cleaner and wipe it with a dry cloth.

When cleaning the center console, prevent the cleaning agent from penetrating into the CD, speakers, radio and other electrical equipment to corrode electrical components.

The third step: maintain the chassis

The summer temperature is high, coupled with rain, the chassis is vulnerable to damage. Exhaust gas, dust, noise, and moisture will penetrate into the body through the small holes in the chassis, causing the body to rust and peel off. Therefore, the chassis must be maintained after heavy rain.

In addition to simple cleaning, “chassis encapsulation” is also a good choice. It can isolate the chassis from the outside world, achieve the functions of anti-corrosion, anti-rust, and sound insulation, and extend the life of the body. Before “chassis encapsulation”, use a special detergent to remove the asphalt and oil stains attached to the chassis, and dry it. Any stains will affect the firmness of the encapsulation. Before encapsulation, the heat dissipation part of the transmission system and exhaust system should be shielded to avoid affecting the normal operation of these parts after encapsulation.

Step 4: Clean the exterior

The car is like its own, don't bother to wash the car after the rain, otherwise it will seriously affect your personal image. In fact, it is not only a personal image problem. In addition to sewage and silt in rainy days, the acidic substances contained in rainwater will seriously damage the car body and paint surface. If it is not treated in time, the car body will lose its luster and affect the appearance.

To prevent acid rain from damaging the car body, the simplest and most effective way is to wax, but if you want to achieve a very long-lasting protection effect, you must seal the glaze. Both can prevent the paint from fading and aging, thereby protecting the paint from aging. harm.

Step 5: Check the circuit

After the rain, the car may have an impact on the performance of some parts of the car due to multiple water injections, and in severe cases, the car cannot be turned on normally. When the circuit is exposed to water, it is likely to cause a short circuit. If the engine stalls while traveling, it cannot be ignited again, otherwise it is very easy to cause the engine to be scrapped. If there is water, the circuit equipment should be processed in time after passing. You can use non-fiber paper towels and textiles to dry the circuits one by one before starting.

In addition, checking the brake system is also very important. Because the brake system has a very strong adsorption force, rainwater is very easy to enter the brake fluid, which will affect the braking effect, and may cause brake failure in serious cases. It is recommended to go to a professional repair shop for inspection after rain to prevent future troubles.

Step 6: Check the headlights

Rainy weather can easily cause water in the headlights. The brightness of the headlights will be affected after the water enters. A lot of water may damage the headlights and change the direction of the headlights, which brings hidden dangers to driving safety. Therefore, it is important to check whether the headlights are flooded.

If you find that there is water fog in the headlights, you can turn on the headlights and turn on the high beams, and see if the water fog in the headlights starts to disappear after ten minutes, and whether it can completely disappear after one hour. If it disappears, don’t worry. , But if there is still water mist, it is necessary to go to a professional after-sales service station for treatment.

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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