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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

Diesel engine lubricants must have excellent acid neutralization and anti-corrosion properties

The lubricating oil for heavy-duty vehicles is easily oxidized to produce oxides, and then carbonized substances are attached to the piston ring groove and other parts of the engine, hindering the normal operation of the engine, so diesel engine lubricating oil must have good oxidation stability. A good clean and dispersible diesel engine lubricating oil will inevitably be mixed with water vapor generated by fuel combustion, nitrous acid gas generated from nitrogen oxides, carbonized products generated by incomplete combustion, and unburned gas leaking from the combustion chamber. If the substance is not dispersed in time, sludge will be formed. In severe cases, it will form paint-like polymer attached to the engine and cause mechanical failure. Therefore, the cleaning and dispersion effect of diesel engine lubricating oil directly affects the working quality of the engine. Good anti-corrosion performance Diesel engine lubricants must have excellent acid neutralization and anti-corrosion properties to prevent oil aging caused by water and acidic substances generated due to various reasons, and corrosion and wear of cylinder liners and piston rings, etc. The situation arises. Good anti-wear performance Lubricants with good anti-wear performance can form a sufficient oil film to reduce the wear of multiple metal-to-metal contact parts in the engine such as camshafts and rocker arms, pistons and piston rings, piston rings and cylinder liners, etc. Extend the service life of the engine. Good defoaming performance If the defoaming performance of diesel engine lubricant is not good, many bubbles will be mixed in the lubricant delivery system, which will not only cause poor lubrication of the bearing, but also cause oil pan oil, misreading the amount of oil and other problems. , Affect the normal operation of the engine, so diesel engine lubricants must have good defoaming performance.

The main function and performance of gear oil for heavy-duty vehicles. The main function of gear oil for heavy-duty vehicles is the anti-wear and anti-pressure effect. As the load of heavy-duty vehicles is relatively large, the load of the gear transmission system is also relatively large, the working conditions are more demanding, and the extrusion wear of gears and various bearings More serious, this requires that the gear oil for heavy-duty vehicles must have a good anti-friction and anti-pressure effect. Anti-corrosion and cleaning effect The working environment of heavy-duty vehicles is generally harsh, and the gears and bearings on the vehicle are more likely to be corroded by dust and water in the environment. Therefore, gear oil must have a better anti-corrosion and cleaning effect. Auxiliary heat dissipation. Since most parts of vehicle gears and bearings do not have cooling systems, gears, bearings, etc. will generate more heat during the process of biting and rotating, especially in the case of bad road conditions or heavy loads. If it cannot be discharged in time, serious mechanical failures are prone to occur. The use of gear oil can increase the heat capacity of the used parts and help the heat dissipation.

For 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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