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 bett...
The Purpose Standardize the management of the scrapping of the company's metal stamping dies, prevent the loss of company assets, and formulate this system specially. Scope of application It is suitable for the management of the company's scrap molds. Definition If the molds listed in the assets of the company fall under one of the following circumstances, the use management department may apply for scrapping. 1. Molds that exceed the specified service life. 2. The mold is severely damaged by accidents or accidents, and molds that cannot be repaired or have no repair value. 3. Metal stamping dies that have not reached the service life, but due to safety, quality, efficiency and other issues, the repair still fails to meet the minimum requirements of the customer's product process or affects the production safety and efficiency. 4. Product customers have stopped placing orders or have not placed orders for molds in several years. 4. Responsibilities 1. Responsibilities of th...
KOVAR parts are commonly used as metal casing materials in the electronic packaging industry. Because they have a linear expansion coefficient close to that of molybdenum group glass, and can produce less sealing stress during the sealing (melting) process with molybdenum group glass, so To obtain good air-tightness, in order to make the metal tube and shell to achieve air-tight sealing, in the entire sealing process, the annealing process undoubtedly plays an important role as a link between the previous and the next. The internal stress generated during KOVAR machining also prepares the material structure for the implementation of the subsequent process-the sealing process of the metal parts. The main purpose of annealing Kovar shell before sealing is to: (1) Eliminate machining stress. When Kovar undergoes plastic machining deformation during cold working, about 10% to 15% of the applied energy is converted into internal energy, which is commonly referred to as internal stre...
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
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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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