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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

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

Elimination of Gear Backlash in CNC Machining Feed System

Elimination of Gear Backlash in CNC Machining Feed System   The transmission gear in the feed system of the CNC machining machine tool must eliminate the transmission gap between the meshing gears as much as possible, otherwise the motion will lag behind the command signal after each reversal of the feed system, which will affect the machining accuracy (accuracy) ). There are the following two common methods for CNC machining machine tools to eliminate the transmission gear gap.   1. Rigidity adjustment method   The rigid adjustment method is an adjustment method that cannot be automatically compensated for the tooth side clearance after adjustment. Therefore, the pitch tolerance and tooth thickness of the gear must be strictly controlled, otherwise the flexibility of the transmission will be affected. This adjustment method has a relatively simple structure and a better transmission rigidity.   (1) Eccentric shaft adjustment method   As shown in Figure 610, the gear 1 is mounted on th

Pay attention to running-in after vehicle maintenance

After the water-ingressed vehicle is repaired, there may also be some problems. The owner can carefully observe in daily use to find the fault. By watching and listening, I can find out if there is any sharp or harsh sound or abnormal lighting phenomenon or malfunction when using some functions. Q: My car was soaked in water and entered the repair shop some time ago. After the repair, I always feel that the engine noise has become louder. Is this normal? How to solve it?

Answer: Just like the need to recuperate in life, water in a car can be regarded as a “serious illness. Even if it is “recovered and discharged”, it still needs careful maintenance. After all, some problems may not be exposed until after a period of use. Therefore, the owner of the car Special attention should be paid to the following three aspects after vehicle maintenance:

First, pay attention to observation. After the water-ingressed vehicle is repaired, there may also be some problems. The owner can carefully observe in daily use to find the fault. By watching and listening, I can find out if there are any sharp or piercing sounds, abnormal lights, and malfunctions when using some functions. If you find a problem, you should contact the auto repair shop for repair in time. For example, the fault light of the sensor is flashing, the seat cannot be moved, etc., you can return to the factory for inspection and repair to ensure the safe use of the vehicle. At the same time, it is recommended that car owners pay attention to the existence of unstable idling, loud engine noise, and rusting of the car during driving.

Next is strict testing. Car owners should pay attention to regular inspections of circuits, airbags and other mechanical components during daily maintenance. The inspection of the circuit system is mainly the car computer board and car lights. Nowadays, the degree of electronicization of automobile products is getting higher and higher. The automobile computer controls the electronic system of the whole car, and its working quality is crucial. The main enemy of electronic products is “water”, so the computer board must be “cared for” when detecting water-ingressed vehicles. If a faulty car computer board causes a false alarm, it will directly affect driving safety. The inspection of mechanical parts is mainly engine inspection. Engines with poor airtightness will leak oil, resulting in insufficient oil. The engine overheats due to lack of oil lubrication, which can cause cylinder explosion. Also pay attention to whether there are abnormal noises or jitters during driving. As there are more hidden dangers in electrical appliances from water-ingressed vehicles, and it is difficult to solve them in time, vehicle owners should pay special attention to them. Conditional car owners* Fortunately, within one year after the vehicle enters the water, every three months, the vehicle will be inspected and maintained at a professional repair station.

After   *, don't forget to run-in. Everyone generally knows that after buying a new car, the vehicle must be run-in first, before the vehicle enters the “best state”, but it is not clear to everyone that the repaired vehicle also needs to run-in. Especially for those vehicles with water in the engine, after overhaul, they must also be run-in like a new car.

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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