Processing Characteristics Of Graphite Dies

- Oct 16, 2017-

Graphite machine processing speed is fast, the copper electrode $number times, the finishing speed is particularly prominent, and its strength is very high, for ultra-high (50~90mm), ultra-thin (0.2~0.5mm) of the electrode, processing is not easy to deformation. And in many cases, products need to have a good surface effect, this requires that when making electrodes as far as possible to make the whole common electrode, and the whole public electrode when the production of a variety of hidden angle, because of the easy to repair the characteristics of graphite, making the problem is easy to solve, and greatly reduce the number of electrodes, but the copper electrode can not do.Graphite Dies

Because the conductivity of graphite is better than that of copper, it is quicker to discharge than copper, which is $number times of copper. and its discharge can withstand a larger current, EDM roughing more favorable. At the same time, the same volume, graphite weight of copper 1/5 times times, greatly reduce the EDM load. For the production of large electrodes, the overall common electrode has an advantage. The sublimation temperature of graphite is 4,200 ℃, which is $number times of copper (the sublimation temperature of copper is 1100 ℃). At high temperatures, the deformation is minimal (the 1/3~1/5 of copper under the same electrical conditions), does not soften.Graphite Dies

Discharge energy can be transmitted to the workpiece efficiently and in low consumption. Because the strength of graphite is enhanced at high temperature, it can effectively reduce the discharge loss (1/4 of the graphite loss is copper) and ensure the processing quality. 3. Light weight and low cost.Graphite Dies In the production cost of a set of moulds, the machining time, EDM time and electrode loss of the electrode are the most of the total cost, which is determined by the electrode material itself. Compared with copper, Graphite's machining speed and EDM speed are $number times of copper. At the same time, the minimal wear characteristics and the overall production of graphite electrode, can reduce the number of electrodes, but also reduce the electrode supplies and machining time. All of these can greatly reduce the production cost of the mold.Graphite Dies