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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

Classification of CNC Machining Occupation Levels

1. Blue-collar layer:   That is, CNC machining operation technicians, proficient in machining and CNC machining process knowledge, proficient in the operation and manual programming of CNC machine tools (attributes: automated machine tools), understand automatic programming and simple maintenance of CNC machine tools (attributes: automated machine tools), such There is a large market demand for personnel, and they are suitable for operating workers of CNC machine tools (attributes: automated machine tools) in the workshop, but due to their single knowledge, their wages will not be much higher.   2. Gray collar layer:   One, CNC machining programmer:   Master the knowledge of 5 Axis CNC machining Aluminum   technology and the operation of CNC machine tools (attributes: automated machine tools), be familiar with the design and manufacturing expertise of complex molds (title: mother of industry), and be proficient in 3D CAD/CAM software, such as UG, GOOGLE PRO/E, etc. ; Familiar with CNC

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

How to properly protect the sealing performance of the car

 

In the hot summer weather, spontaneous combustion of vehicles caused by oil circuits and electrical circuits often occurs, which often causes the vehicles to be scrapped and sometimes even endangers personal safety. In this regard, fire protection professionals proposed that “cleaning in the cabin” can prevent spontaneous combustion, and specifically gave two key preventive measures.

A few days ago, in front of the business department of China Merchants Bank, Zhongshan Road, Heping District, Shenyang City, Liaoning Province, a black smoke suddenly appeared from the engine compartment of a silver-gray car, and then spontaneously ignited. After the firefighters rushed to the scene, they reminded the car owner to “don’t open the car cover yet”, and helped extinguish the fire, but the car was basically scrapped.

The reporter learned from the Shenyang Fire Brigade that since May, the temperature has risen significantly, and spontaneous combustion of vehicles has begun to increase. In just half a month, 36 car fire accidents have occurred in the city, which is the highest in the past year. At present, most common automobile spontaneous combustion incidents are caused by short circuits in high-temperature weather, and the probability of occurrence is more than 60%; the second is the oil circuit problem. A recent change is that spontaneous combustion incidents caused by car decoration have also begun to increase.

Sun Guofeng, a senior engineer of the Shenyang Fire Fighting Detachment, believes that there are two main causes of vehicle spontaneous combustion. One is the short circuit caused by the aging of the circuit. A large part of the spontaneous combustion accidents are caused by fire in the engine compartment. Connection, etc. caused by short circuit and fire. Another cause is the aging of the oil circuit leading to a fire. Because some oil leakage and oil leakage in the engine room have not been detected in time, the temperature in the engine room rises sharply in the summer high temperature environment, which is enough to ignite the leaking oil and cause the risk of spontaneous combustion. “‘Cabin cleaning’ can prevent spontaneous combustion. For short circuits caused by aging of the circuit, the way to avoid it is to develop a good inspection habit and regularly check some circuits in the car; and for the problem of aging oil circuits, wash the car at the same time. It is necessary to clean the dust and oil stains in the engine compartment, and if necessary, go to the repair shop for professional cleaning, so as to discover and eliminate the risks in time." He suggested.

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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