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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

Elimination of Gear Backlash in CNC Machining Feed System

Elimination of Gear Backlash in CNC Machining Feed System   The transmission gear in the feed system of the CNC machining machine tool must eliminate the transmission gap between the meshing gears as much as possible, otherwise the motion will lag behind the command signal after each reversal of the feed system, which will affect the machining accuracy (accuracy) ). There are the following two common methods for CNC machining machine tools to eliminate the transmission gear gap.   1. Rigidity adjustment method   The rigid adjustment method is an adjustment method that cannot be automatically compensated for the tooth side clearance after adjustment. Therefore, the pitch tolerance and tooth thickness of the gear must be strictly controlled, otherwise the flexibility of the transmission will be affected. This adjustment method has a relatively simple structure and a better transmission rigidity.   (1) Eccentric shaft adjustment method   As shown in Figure 610, the gear 1 is mounted on th

Several commonly used thread CNC machining methods in CNC machining centers!

 Thread processing is one of the most important applications in CNC processing. The quality and efficiency of thread processing products will directly affect the quality of CNC machining of parts and the production management efficiency of machining centers.

Several commonly used thread CNC machining methods in CNC machining centers!


With the improvement of the performance of the CNC machining technology center and the improvement of cutting tools, the thread processing methods are also continuously developed and improved, and the precision and efficiency of thread processing can gradually be improved. In order to enable the management of process researchers to reasonably choose thread processing methods in processing, improve production and operation efficiency, and avoid quality and safety accidents, the analysis and summary of several thread numerical control processing methods commonly used in cnc machining centers in practice are summarized as follows:

1. Tap processing method

Tap is the most commonly used processing method for threaded holes, which is mainly suitable for threaded holes with small diameter (D<; 30) and low hole position accuracy.

2 Determine the threaded bottom hole before tapping

The processing of the threaded bottom hole has a great influence on the life of the tap and the quality of thread processing. In general, the diameter of the bottom hole drill is close to the upper limit of the bottom hole diameter tolerance.

3 Selection of taps

For the selection of taps, first of all, the corresponding taps must be selected according to the processing materials. The cutting company produces different types of taps according to different types of taps, so pay special attention to the selection.

4 CNC programming for tap processing

Programming for tap processing is relatively simple. Currently, tapping subroutines are generally solidified in CNC machining centers, and all parameters need to be assigned. However, it should be noted that the format of the subroutine is different and the meaning of some parameters is also different for different CNC systems.

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