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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

Talking about the maintenance of car batteries in winter

Many people who drive in winter often have this feeling: the battery that has just been fully charged will run out in a while. It feels like the electricity in the battery has been stolen, which is really a headache for many car owners. This is because the temperature in winter is low, and the capacity of the battery in a low temperature environment is much lower than that at room temperature. Therefore, in winter, it is extremely important to maintain the battery. Below, I will introduce you to the maintenance of car batteries in winter.

Why is the battery dead?

There are still functions and components running after the vehicle is turned off

Many car owners think that after closing the switch, the car will be in a state of power failure. In fact, many devices are still in operation. *It is common that the anti-theft system installed on many car models nowadays, as soon as the car door is locked, the system starts to work, and its power consumption is much smaller than that of equipment such as headlights. But after a few weeks, when the car is not started for a long time for charging and the battery is in a poor state of storage, the battery will run out.

After the flame is turned off, is the car completely still? In the traditional impression, as long as the car key is turned to the electric door closed state, all parts of the car are in a stopped working state. However, when the engine temperature is too high, even if the car is turned off and the car key is pulled out of the car, its cooling system will automatically start to cool the engine system. Only when the engine system temperature drops, the cooling system will automatically stop working, usually this process takes 3 to 5 minutes.

forgot to turn off the lights after locking the car

I didn’t turn off the lights when I stopped the car. The battery was overworked and shocked all night, and finally went on strike. Of course, many vehicles now have locked their headlights automatically, but there are still some vehicles that need to turn off their headlights manually, so pay attention outside.

What are the precautions for using the battery in winter?

1. The accumulator is not used for a long time, it will slowly discharge by itself until it is scrapped. Therefore, the car should be started every once in a while to charge the battery.

2. Avoid long-term parking of the car in the open-air parking lot. If it is parked for a long time, the battery must be removed and taken away to prevent the battery from icing and damage.

3. The storage capacity of the battery can be reflected on the dashboard. When the ammeter pointer shows that the battery is insufficient, charge it in time.

4. The car engine is not easy to start in winter. The time to start the car should not exceed 5 seconds each time, and the interval between restarts should not be less than 15 seconds.

5. Distilled water or special rehydration should be added when the electrolyte is depleted. Do not use pure drinking water instead, because pure water contains a variety of trace elements, which will cause adverse effects on the battery.

6. Clean the battery terminal at intervals and apply special grease to protect the wiring harness. Frequently check the accessories and connection lines on the battery.

7. Always check whether the small holes on the battery cover are ventilated during daily driving. If the small holes on the battery cover are blocked, the generated hydrogen and oxygen cannot be discharged. When the electrolyte expands, the battery shell will break and affect the battery life.

8. It is forbidden to use automobile electrical appliances after the car is turned off. Using the battery alone when the engine is not generating electricity will cause damage to it.

9. Check each part of the circuit for aging or short circuit to prevent the battery from being decommissioned early due to over-discharge.

10. Generally speaking, the battery life of a car is about 2 to 3 years, but the modified car equipment will often damage the battery life. In winter, it is necessary to check whether the battery is operating normally.

The specific method of maintaining the battery:

1. Wipe the outside of the battery with a damp cloth, and wipe clean the dust, oil, white powder and other dirt on the panel and column head that may cause leakage. Frequently scrub the column head of the battery, not only will the white acid powder not accumulate on it, but the service life of the battery will be longer than expected.

2. Open the water filling cover of the battery to see if the water level is in the normal position. Generally, there are upper and lower limit markings on the side of the battery for your reference. If you find that the water level is below the lower mark, you must add distilled water. Do not add too much water. The standard is that the middle * of the upper and lower marks is appropriate.

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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