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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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To ensure that the vehicle is effectively maintained under the state of the diagnostic system

cncmachining February 02, 2022

The requirements for the reliability of vehicle equipment should be determined according to the conditions of ensuring safety or the conditions of cost optimization during vehicle equipment manufacturing and operation. When designing a new type of passenger locomotive by the “Main Line” Vehicle Manufacturing and Design Bureau Joint Stock Company, it used to ensure the reliability of the vehicle equipment from the perspective of ensuring safety, especially the safety of the system that has an impact on the determination of the continuous working failure-free rate index. The level was assessed. The control system and the diagnosis system have become the first step in the use of automatic data detection. They are used to provide continuous detection and assessment of the technical status of the vehicle equipment, and are used to provide analysis and transmission from the running train to the fixed station of the technical maintenance. Information about equipment failure and damage. It should be pointed out that the use of instrumental detection is the best method in some cases, for example, when tracking some fast-changing damage tendency process, because the process of detection may have to be continuous.

In order to ensure the effective maintenance of the vehicle under the condition of the diagnostic system, it must have the function of automatically predicting the failure of the bogie, automatic coupler, and braking device. In order to solve these problems, new diagnostic techniques should be researched and adopted. For example, in order to detect the status of brake shoes, many foreign companies use video monitors to transmit information to electronic computers. The method of using perspective to discover and detect the expansion of cracks belongs to the acoustic emission method, which is based on the principle of measuring sound radiation to form oscillations at the cracks, and has been successfully applied in many sectors of the machinery manufacturing industry. As pointed out above, not all damage to the vehicle equipment system will lead to the failure of the entire vehicle. Therefore, the choice of reliability level and maintenance method is suitable for the result of implementing the total cost * reduction. See the procedures for selecting equipment technical management and maintenance methods.

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.

Link to this article：To ensure that the vehicle is effectively maintained under the state of the diagnostic system

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