Standard For Selection Of EDM Graphite Electrodes Materials

- Aug 09, 2017-

                 The flexural strength of the material is a direct embodiment of the strength of the material, showing the tightness of the internal structure of the material. High strength material, its discharge performance is relatively good, for the high accuracy of the electrode, as far as possible to choose the better strength of the material. For example: TTK-4 can meet the general requirements of electronic connectors mold, but some have a special precision of the electronic connector mold, you can choose the same size, but the strength of a slightly higher material TTK-5 material.EDM Graphite Electrodes

                 In the subconscious understanding of graphite, graphite is generally considered as a softer material. However, the actual test data and application shows that graphite hardness is higher than metal material. In the special graphite industry, the common hardness test standard is the shore hardness measurement method, its test principle and the metal test principle is different. Because of the graphite's layered structure, it has very advantageous cutting performance in the cutting process, the cutting force is only about 1/3 of the copper material, the machined surface is easy to be treated.EDM Graphite Electrodes

                 However, because of its high hardness, in cutting, the loss of the tool will be slightly greater than the cutting metal tool. At the same time, the high hardness of the material in the discharge loss control is relatively excellent. In our EDM materials system, for the application of more than the same size of materials have two of materials to choose from, a slightly higher hardness, a slightly lower hardness to meet a variety of different requirements of the customer's needs. Such as: The average particle size of 5μm materials, there are ISO-63 and TTK-50, the average particle size of 4μm materials, TTK-4 and TTK-5, the average size of the 2μm material, TTK-8 and TTK-9. The main consideration is to consider the different types of customers for the discharge and machining of the biased direction.EDM Graphite Electrodes