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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

Study car vibration and noise

Studying the vibration and noise of automobiles and taking effective measures to control them has also become extremely complicated. At present, effective control measures have been taken to control the internal noise of gasoline and diesel vehicles, while the problem of identifying and controlling noise sources of new energy vehicles such as hybrid vehicles, electric vehicles, and fuel cell vehicles will become a problem for researchers. New subject. Each test will provide effective feedback to optimize the design at this stage. These verification tests and design optimization are repeated to determine the structure of the catalytic converter.

Taking a fuel cell prototype vehicle as the research object, through the experimental analysis of its acoustic and vibration characteristics in the anechoic chamber, the main frequency components of the noise in the vehicle under static and different uniform speed conditions and the corresponding noise sources and their transmission methods are obtained. The corresponding vibration and noise reduction schemes are proposed.

Introducing the noise sources in the car The vibration and noise generated by the driving motor assembly, power steering pump, air-conditioning compressor, fuel cell auxiliary system moving parts (such as hydrogen pump, fan) and cooling water pump of the fuel cell prototype vehicle studied are inside the car The main source of noise. Among them, the drive motor assembly, power steering pump, air-conditioning compressor, and fuel cell cooling water pump are arranged in the front compartment, and the hydrogen pump and fan are arranged in the luggage compartment. Because the prototype car borrows the traditional engine front car body, the rear part of the body does not adopt sound insulation measures, when the fuel cell power system is working, the occupants in the rear seats obviously feel a low “buzzing” roar, and the rear seats The noise is significantly higher than the front seats.

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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