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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

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

The reasons for the ups and downs of the auto parts market


When we estimate the required amount of accessories, we must pay full attention to the decline in the consumption of bicycles due to the improvement of product quality, changes in user management and consumption concepts. It is impossible for us to imagine that by the end of this century, China’s car ownership will reach 10 million. According to the consumption quota in 1979, it will consume 17 billion yuan in repair parts every year. The cost of bicycle repair parts in the United States (including accessories, purchase of tools, decorations, etc.) is about $20 per year.

Forecast of the growth rate of auto repair parts. Throughout the “Seventh Five-Year Plan” period, the annual net increase in car ownership (the current year’s output plus the number of imported cars minus the number of scrapped vehicles) averaged about 450,000. Maintenance parts need to increase by about 380 million yuan each year, and the national auto parts company’s system market share is 60, an annual increase of about 230 million yuan. Therefore, the pure sales of repair parts are about to increase every year. 8. The price factor. In 1986, the state made significant adjustments to the prices of mandatory plans for non-ferrous metals such as aluminum, tin, and zinc. Therefore, there will be a substantial increase in the price of a considerable part of the accessories this year. According to the forecast of Shanghai Auto Parts Company, the average price of repair parts this year will increase by about 5 than the average price in 1986. Two factors that affect the instability of the auto parts market. Assemble the car. Assembled cars from 1984 to 1985 caused the auto parts market to overheat. After the state intervention in the second half of 1985, the market fell sharply.

Since the beginning of this year, many regions have reported that the wind of loading cars is on the rise. Correction of Pinyanong Han Prison: The fundamental reason for installing a car is that the price of the car is too high. A BJ130 car sells for 23,000 yuan, but it only costs 17,000 yuan to assemble one. As the country’s policy on assembled vehicles is tight and loose, the parts market fluctuates from time to time.

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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