EDM graphite materials application FAQ
EDM in the field of large number of users Kokak klic-5001, Kokak klic-7001 in the application of graphite electrode materials are still a lot of doubts. On the one hand due to long-term use of traditional copper allows users to have their customary sexual and psychological dependence, and partly because of their milling or the practical application of EDM lack of experience.
60s in the last century, copper is widely used as an electrode material, the utilization rate about 90%, graphite only about 10%. Today, however, this situation has changed in Europe, more than 90% of the electrode material is graphite. Copper, which has been dominated by electrode materials Dell Latitude D430 Battery, and its advantages compared to graphite electrodes is almost gone. What led to this dramatic change? EDM industry in recent years to prove: this change due to the many advantages of graphite electrodes.
This article will explain the process of EDM graphite materials
Kokak klic-7004, Kokak cr-v3, may encounter some problems, and we hope that through this you can unlock your doubts on the graphite material.
A graphite material is dangerous?
EDM graphite is used instead of synthetic products of natural graphite, synthetic graphite must go through a lengthy production process to manufacture high-tech shape, there is no radiation! . According to the specifications of different products to generate process usually ranging from four to seven months. In the production process, the graphite to high temperatures up to 3000 degrees Celsius for processing. Such a high temperature so that most of the impurities are volatile, and thus the purity of graphite up to 99.99% (100ppm). This means that one million products, there is only 100 impurities, and these impurities was again divided into a variety of elements, is difficult to trace Midao canon bp-511, canon nb-2l,. Some special applications require even less than the purity graphite 5ppm. As a result, in the product manufacturing and mold making is rarely a completely pure natural raw materials production.
For the milling operation employees who work in the dust environment is indeed a danger. If this is a very small dust are inhaled into the lungs, respiratory tract damage will, therefore, confined nature of the machine is very important. Now used for graphite machining, high-speed milling machines are equipped with sealing device and dust collector, these are the standard machine tools, as long as the maintenance properly, do not have to worry about dust brings harm.
2 working hours will be broken fin?
According to the tests, found that if an incorrect or unreasonable use of the
canon nb-2lh, canon nb-4l, cutting method, cutting parameters, and not suitable for graphite machining tool, often result in broken ribs.
From the process technology point of view, graphite and copper can not be compared because it completely using different processes. For example, the amount of feed per knife larger the tool wear is smaller. In addition, the metal material processing diametrically opposite, in graphite machining, with the increase in cutting speed, tool wear but significantly reduced.
This case, we mainly use the diamond or diamond-coated cutting tools. In use at the same time, people also need to note that many different metal material processing rules. Dell Latitude D500 Battery Under normal circumstances, the introduction of companies such as software, machine control systems and automation systems, a new process every time, generally staff training. But the only way to convert the graphite copper processing time, very few companies provide them with training opportunities. Therefore, many materials with graphite instead of copper EDM manufacturers, this early attempt from the beginning he had already died.
3 to spend more time learning about the application?
The acceptance of new things usually take time. How to treat a relatively casio np-20, casio np-100, minolta np-600, new topic of graphite materials, one must change one way to think about, and there may also need to re-design process some of the process technology to match. But more important point is to take all these measures can give us a tremendous cost savings of space, but also can greatly shorten the molding cycle – EDM graphite electrode efficiency is 2-3 times that of copper, while the cutting efficiency is 3-5 times that of copper.
From the global market point of view, if someone still able to continue to 20 years ago, the operation of the European mode of production, and in Asia and Eastern Europe, a place to compete successfully in the case, then he’s certainly very unique product. Otherwise, no improvement to the old case of the production process is bound to catch up by others. Graphite is such a way to make people want the desire to reduce costs Dell Latitude D520 Battery quickly possible excellent electrode material.
Many users will be followed by use of a graphite electrode materials, reduce the number of half. This will produce what kind of results?
⑴ electrodes required for the electrode clamping fixture greatly reduced.
⑵ needs to be installed to reduce the number of electrodes.
⑶ only need a small amount of zero setting for Sony np-f970, Sony np-bg1, nikon en-el3.
⑷ electrodes measured the workload greatly reduced.
⑸ the amount of material used to make electrodes greatly reduced.
⑹ cutting cycle significantly shortened, and the corresponding also reduces electrode wear. Use of copper electrode, a cavity to be more than only the electrodes, if replaced by graphite, then the electrode can be more than the previous combination of an electrode. In this way, the current through the electrodes can increase, not only improve the processing efficiency and also reduces electrode wear.
⑺ cutting speed significantly higher than that of copper material
4 copper is cheaper than the graphite material?
This sweeping statement not based on facts, it is because people tend to ignore both the fact that different measurement methods. Copper is measured in kilograms, while the graphite material is usually calculated in terms of volume. In the conversion process, one nikon en-el4 , nikon en-el4a should also consider the density of a variety of electrode materials. Due to the recent international market, copper prices have sharply risen to around 60 yuan per kilogram (early in 2005 copper price is only 30 yuan per kilogram from top to bottom), the graphite material itself has been relatively lower than the price of copper, and copper is non-renewable resources, Prices will be more expensive. If, there are people who want to buy a cubic decimetre (about 9 kg) of copper, then he would have to pay about 540 yuan. At this price, people already have access to more high-quality graphite products, regular grade graphite is even more affordable price. In the calculation of cost-optimized graphite and copper prices is certainly a factor, efficiency and product quality is more important, previously mentioned in the graphite material has the characteristics and in the application can play is the key, specific conditions will be referred to in the post-text.
5 storage or transport of graphite fins prone to fracture Dell Latitude D600 Battery?
This statement is certainly correct, but the phenomenon is certainly inadequate? If the fin electrodes during transport, which occurs due to improper handling of broken, people will immediately find this situation and immediately aware of electrode damage occurred. If using a copper, the fin will be treated in undue bending. Whether people are able to quickly discovered the flaw it is very doubtful. If there is no timely detection and people continued to use this root electrode EDM, then the cavity, or damage to the workpiece on the inevitable.
If a graphite electrode rib fracture occurs, then people can decide whether the particular circumstances to re-milling a new electrode. The electrode at higher prices can also be connected to the (glue) A section of graphite, and then this period of re-milling, and to use a section break olympus li-10b, olympus li-12b, samsung sb-lsm160 to re-create into a single-electrode.
6 copper surface quality can be achieved to reach the standard?
A few years ago, it is also possible that the processing part of graphite surface quality can only be achieved VDI18. But now the situation has shown that graphite materials processing workpiece surface quality can be achieved VDI12 or higher level. Of course, this standard does not address all of the graphite material, or using the traditional situation of EDM machine tools, such as crude or conventional graphite graphite can not meet this standard. To obtain such a surface quality, all kinds of graphite materials, production conditions must be to achieve the best fit condition. In this case, the electrode size, process, and graphite types of choices are key factors will play a decisive role. However, the important point is that the graphite material can be used to achieve a very fine surface Dell Latitude D810 Battery quality.
Many EDM equipment manufacturers and graphite materials, manufacturers have done a lot of efforts. Today, they can provide customers with graphite processing of specific processing equipment and processing parameters. Moreover, the graphite manufacturers are also exploiting their more refined graphite brand to meet customer demand.
However, the most important factors is that people must choose fujitsu T4215 Battery , fujitsu T4220 Battery , fujitsu T5010 Battery for equipment manufacturers and graphite manufacturer. Much fuss over the situation often occurs, for example, some customers will be selected in order to carry out sample processing of the most complex parts, and then go to where the test equipment manufacturers processing. This type of parts in the customer’s product categories accounting for up to 1%. If the equipment and technology are used as criteria, then there is no doubt that there would be a problem: 99% of other conventional processing of the how to do?
Therefore, the usual selection of equipment should be to meet 95% of the product range is appropriate. The rest of the product range can be entrusted to other good businesses to do special processing, or use a repeated use of the electrodes. In this case, we can take to extend the discharge time, or, if necessary, apply copper electrode method.
7 Graphite can be used with the copper Dell XPS M140 Battery under the same bias?
In theory, the answer is yes. However, we do not recommend. Because of the particular thermal properties of copper it can usually choose the next bias. Graphite can withstand higher energy, it should adopt the next larger deviations. Thus significantly decreased the relative loss. Because people can use graphite milling out of a very small fin, the corresponding, choose the next larger deviations may also be realized.
8 graphite increased loss recovery process? sony vgp-bps9 , sony vgp-bps9/b , sony vgp-bps9/s
This may be a problem. However, customers are often referred to, after discharge, the “security dimension” is still able to meet customer requirements. Typically, the graphite material loss increases in the occurrence tend to occur in the processing of the case of small electrode; and people will acquire the habit of the recovery process after the repair work directly on the material. In fact this approach is wrong. Discharge after processing, but also through a polishing process, which is working procedure generally do not need to spend a long time.
Should be noted that there is such a question: If the part is always present from 0.01 to 0.02 mm of the margin, can we join the electrode compensation in the amount Dell XPS M1530 Battery of programming so that you can put in place a process without the need for recovery processing.
9 wire cutting graphite slower than copper?
In this view is correct, because the graphite melting point higher than that of copper more than it more difficult to be processed. However, to note that most of the related industries – such as graphite manufacturers, device manufacturers and production lines manufacturers already begun sony vgp-bps9a , sony vgp-bps9a/b to address this problem. People can use the latest equipment (such as laser processing, high-pressure water jet) process of qualified products. If we use the wire cutting principle, we advise clients to use fine particles of graphite products and significantly reduce the flushing pressure, especially for the thin muscle electrodes. With coarse particles compared to the product or conventional products, fine particles of graphite product-line cutting process to provide greater security and feed rate.
However, the actual situation, now how many graphite electrode EDM processing it through? Number of electrodes can be used the first 4-5 axis high speed milling machines to process. If you have no other way, then one can also use copper electrode, previously said that, even in the mold industry is very developed in Europe, the graphite is not 100 percent utilization rate, any kind of thing has advantages and disadvantages.
10 Conclusion Dell XPS M1330 Battery
In addition to the above-mentioned advantages, the graphite also has the following advantages:
⑴ processability good (to comply with operational rules and the premise).
⑵ high thermal stability (heat distortion does not occur).
⑶ light weight (for processing equipment) hp 530 battery , hp 540 battery , hp 550 battery
⑷ do not have to burr (for automated systems essential to this point).
⑸ extension coefficient is low (temperature changes in small).
⑹ able to cater for a variety of processing conditions to provide the best choice (coarse particles and fine particle graphite)
⑺ on the market also provides an electrode Dell XPS M1730 Battery can be used (ie, graphite products have been processed, you can immediately apply to EDM).
With many new technological developments, the use of graphite materials is a continuous learning and optimization process. The key is to give the relevant staff to participate in training opportunities in order to realize their potential. The face of fierce international competition, only the continuous optimization of business processes and innovative processes in order to survive. Today, graphite products already have a corresponding environment. Have emerged on the market not only for coarse particles hp 500 battery , hp 510 battery , hp 520 battery , fine particles with good-quality graphite products and graphite products a perfect match with the new cutting equipment, in addition, graphite milling cutter with a professional is also at your fingertips.
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