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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

Advantages of five-axis machining of aluminum alloy parts

Aluminum alloy is a very good material for parts. Its low density can achieve lightweight parts and its strength is very high even comparable to steel. In addition, its corrosion resistance, electrical conductivity and thermal conductivity are very good. But there is a major defect that precision machining is very difficult, but the emergence of five-axis machining technology has solved this problem well. Today, let’s take a look at the advantages of five-axis machining of this aluminum alloy part.

1. Reduce processing time

In the processing, the flat-bottomed end mill is used to maintain the vertical surface of the complex mold processing surface, which can greatly reduce the processing time. It is also suitable for side milling with angled surfaces, which can eliminate the rib-like shape caused by the spherical end mill processing. The texture makes the surface quality of the aluminum alloy mold more ideal and reduces the workload of manual milling and manual work required to clean the mold surface.

2. Improve processing accuracy

Through this technology, the problem that the workpiece needs to be repositioned at a complex angle and needs to be debugged multiple times can be solved not only shortens the time, but also greatly reduces the error generated, and the large cost of tooling and fixtures required when installing the workpiece It also saves money and the machine tool can also add complex parts, such as the drilling taper processing cavity recesses required for complex surfaces, which cannot be achieved by traditional methods.

3. High production efficiency

It can effectively reduce the processing time and auxiliary time of the parts. The range of the spindle speed and feed rate of the linkage machining center is large, allowing the machine tool to perform powerful cutting with a large amount of cutting. At present, when this technology is entering high-speed machining, the rapid movement and positioning of moving parts And high-speed cutting reduces the turnaround time of semi-finished products and improves production efficiency.

In addition, this kind of five-axis machining equipment for aluminum alloy parts is relatively easier to realize intelligence. At present, network-based mobile control methods such as tablet computers, mobile phones and wearable devices will become more and more popular. This type of operating device can quickly react to switch screens, uploading or downloading data, and significantly reduces the misoperation rate. Compared with traditional three-axis and four-axis machine tools, this kind of five-axis linkage equipment is undoubtedly more capable of achieving automation.

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