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　Characteristics of graphite 1 light weight: the proportion of 1/5, copper, suitable for the production of large electrodes 2 machine processing performance is good: cutting resistance for copper 1/3 3 surface easy to deal with: no burr after machining, easy manual processing 4 high temperature: when the temperature reached 3650 degrees Celsius, it can withstand higher current. 5 the thermal expansion coefficient is low: 1/4 for copper, and the heat is not deformed 6 discharge machining speed: discharge machining speed than copper block 3~5 times, large area or rough machining more obvious. 7 electrode loss is small: the ratio of the copper and copper is 2:4, it can be processed without damage. Machining method of graphite electrode: 1 tool requirements:…
CNC machining speed, cutting, easy dressing: high speed milling rough machining a copper block 3 times, high speed milling finishing a copper block 5 times, and its strength is very high, for high (50-90mm) ultrathin (0.2 0.5 mm) of the electrode, processing is not easy to deform. Many times the product needs to have good ruled surface effect, which requires to do the whole of the electrode and in the production of the whole electrode exists all sorts of hidden corner cleaning, due to the characteristics of graphite is easy to repair, making this problem is easy to solve, and greatly reduce the electrode number, can realize the complex geometry, and copper is unable to do so Rapid EDM molding,…
How to use graphite materials and other relevant factors to consider is, of course, die by the copper electrode conversion of graphite electrode. First of all, should be clear. Today part of the spark machine customers using graphite electrode discharge machining, which eliminates the mold cavity polishing and chemical polishing process can still achieve the desired surface finish. Without increasing the time and polishing process, the copper electrode can not produce such a workpiece. In addition, graphite is divided into different levels, in a specific application using the appropriate levels of graphite and electric spark discharge parameters to achieve the ideal processing effect, if the graphite electrode spark machine uses the operating personnel and the copper electrode of the same…
