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Working principle of slow wire processing

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 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
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Hydrostatic guideway of CNC machining lathe

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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

Introduction of KOVAR parts

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KOVAR parts are commonly used as metal casing materials in the electronic packaging industry. Because they have a linear expansion coefficient close to that of molybdenum group glass, and can produce less sealing stress during the sealing (melting) process with molybdenum group glass, so To obtain good air-tightness, in order to make the metal tube and shell to achieve air-tight sealing, in the entire sealing process, the annealing process undoubtedly plays an important role as a link between the previous and the next. The internal stress generated during KOVAR  machining also prepares the material structure for the implementation of the subsequent process-the sealing process of the metal parts. The main purpose of annealing Kovar shell before sealing is to: (1) Eliminate machining stress. When Kovar undergoes plastic machining deformation during cold working, about 10% to 15% of the applied energy is converted into internal energy, which is commonly referred to as internal stress,
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Change the lubricating oil when the temperature drops *important

cncmachining February 05, 2022
The recent drop in temperature will lead to a decline in the controllability of various components of the car. Proper maintenance can improve the performance of the car and ensure driving safety.
Lubricating oil replacement *Important Lubricating oil replacement is the most important part, because after the weather changes, the viscosity of the lubricating oil will also change, which will aggravate the wear of the parts and cause the engine to be damaged to varying degrees. Moreover, the lubricating oil itself is divided into two types: winter and summer. Experts suggest that car owners should replace winter lubricating oil as soon as possible whether in Guangdong or in the north. In particular, the oil that has been used for a long time, the color is black, and the adhesion has deteriorated should be replaced to ensure that the engine starts and runs smoothly.
In addition, check the brake system. It is not uncommon to drive long distances. Therefore, it is not impossible to encounter rain and snow. Therefore, this is a key step in winter maintenance. For vehicles with pneumatic braking, the preload of the balance spring in the master cylinder should be adjusted reasonably. If the preload is too large, it will produce a “hard” feeling when braking. Such braking is prone to accidents on some slippery roads. If it is a hydraulically braked vehicle, pay attention to check the brake fluid, brake pipeline and each brake cylinder for leaks.
The tire should be replaced in good time. When the temperature is low, the rubber of the tire will become hard and relatively brittle, and the friction coefficient will be reduced. Therefore, the air pressure should not be too high when the tire is inflated, but not too low, otherwise it will shorten the life of the tire.
Experts also reminded you to frequently clean up the inclusions in the tire pattern in winter, try to avoid using tires that have been repaired more than once, and replace tires with larger wear and different brands and different patterns. The internal and external wear of tires are quite different. To ensure safety and reduce wear, tires should be changed regularly.

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