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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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Analysis of the key points of selecting automobile lubricants

cncmachining March 04, 2022

Auto Supplies Network: For a car, the engine is its “heart”, and engine oil can be vividly called “blood”. Only high-quality and sufficient lubricating oil can carry us to any place we think of, or travel, or Work. So, how to choose car lubricants? Follow the editor to take a look.

Method / step

1, check the appearance

Car enthusiasts should know that good lubricants can enhance the power of the car and at the same time make the car more durable. Therefore, when selecting engine oil, you can identify its quality by observing its appearance. The high-quality ones look clear, transparent, free of debris and suspended particles. Shake it with your hand, it should have better fluidity. But inferior ones look turbid, and you may be able to see the impurities inside. Some of them may be darker in color, and give off a pungent or strong smell. This kind of oil also damages the engine more, so be careful. Oh.

2. Packaging

The outer packaging of lubricating oil will actually tell you its quality. The good quality oil seal is a disposable cover. The gap will be sealed with tin foil. At the same time, the manufacturer’s name will be printed on the tin foil. Use this The quality is more assured, and the engine can be better protected and wear is reduced. Inferior products generally do not have such a seal.

3, viscosity with engine

Secondly, the viscosity of the lubricating oil used in the car will be different, so you should choose the appropriate oil according to your own car. For the new engine, you can choose a lower viscosity, because it is just in the running-in period and does not require much power. So, what kind of car should I choose for a long-running and severely worn-out car? It is recommended to choose one with a large viscosity to maintain the oil pressure used and to ensure its normal lubrication.

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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