EDM used in graphite processing is synthetic products rather than natural graphite processing, synthetic graphite processing must undergo a long high-tech production process and the formation, no radiation! Depending on the specifications of the product, the build process typically ranges from 4-7 months. In the production process, the graphite processing in the high temperature of up to 3,000 degrees Celsius processing. Such a high temperature makes most impurities volatile, so that the purity of graphite processing up to $number. 99% (100ppm). This means that only 100 of the 1 million products have impurities, and the impurities are decomposed into various elements, which is difficult to trace. Some special applications require the purity of graphite processing can even be less than 5ppm. Therefore, in the manufacture of products and mold manufacturing is very rare in the use of pure natural raw material production.
For workers operating milling machines, working in the dust environment is indeed a danger. If this minimal dust is inhaled into the lungs, it can cause damage to the respiratory tract, so the tightness of the machine is very important. Now used for graphite processing high-speed milling machines are equipped with sealing devices and dust collectors, these are the standard configuration of machine tools, as long as the maintenance is properly, do not worry about the dust to bring harm.