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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

Car maintenance: timely replacement of oil is very important

After a severe winter, the pace of spring is getting closer. Car owners at this time, in addition to checking for potential faults in their car, they should also pay special attention to the replacement and addition of oil. Let’s take a look at the editor of Liangchehui below!

1. Replace brake fluid

Some car owners often find that their car's brakes are soft after the end of the Spring Festival self-driving tour. The reason is that after the long-distance self-driving tour, the car's lubricating oil, coolant, and brake fluid loss is relatively large, but the car owner does not It is caused by timely replacement and addition. Therefore, in the spring after the weather has warmed up, car owners should check whether there is any shortage of these oils in their cars and replenish them in time.

In addition, when the brake fluid moves back and forth in the brake pipe, sludge and other impurities will be generated after a period of time, which directly affects the braking force of the vehicle. Therefore, the owner must replace the brake fluid every 20,000 to 40,000 kilometers.

2. Replace the dirty lubricating oil

After the Spring Festival, large-scale snowfall and icy roads across the country caused congestion. Vehicles on the way back and forth need to be started frequently. Engines often fail to warm up in time. Unevaporated water and insufficiently burned fuel will lubricate. The oil quality is degraded, which in turn leads to engine corrosion and sludge production, and the engine has been operating under high load.

Therefore, car owners can go to a professional store to check whether the lubricating oil is clean and flowing smoothly. In addition, low-temperature and high-load operation is prone to sludge and carbon deposits. If necessary, the lubricating oil should be replaced or the replacement interval should be reduced.

3. Replenish battery fluid

Battery* is afraid of low temperatures. The capacity of the battery in a low temperature environment is much lower than that at room temperature, and its performance will be significantly reduced. This is one of the reasons why the engine is difficult to start cold. Therefore, in the few heavy snow and low temperature weather after the Spring Festival, the owner of a liquid battery should replenish the electrolyte of the battery and adjust the specific gravity of the electrolyte. At the same time, the owner of the vehicle should clean the battery terminal and apply special grease to protect it, so as to ensure reliable starting and prolong the battery life.

If the car owner finds that some batteries have poor performance, it is best to replace them with new ones to ensure safe driving.

4. Check the coolant

With the advent of spring, as the temperature gradually rises, the coolant in the car’s water tank is insufficient. Many car owners will arbitrarily use clean water to replenish them when they find it. In fact, this method is unscientific. Clean water is easy to produce alkali and scale, and the boiling point is low, which is very easy to cause “boiling”. Therefore, even though the temperature has risen, car owners cannot change the coolant to clean water at will.

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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