The choice of High Quality Graphite Electrode is directly related to the effect of discharge. However, due to its high hardness, the loss of the tool during cutting will be slightly greater than that of the metal cutting tool. The smaller the average particle size of the material, the smaller the loss of the material and the greater the force between the ionic groups. Due to the layered structure of graphite, it has excellent cutting performance during the cutting process. 3. That is, the discharge rate and loss will be different. Inherent resistivity of the material According to our company's statistics on the characteristics of the material, if the average particles of the material are the same, the discharge rate of the large resistivity will be slower than that of the small resistivity. The cutting force is only about 1/3 of the copper material, and the surface after machining is easy to handle. For example: it is generally recommended that ISEM-7 is sufficient to meet the requirements of precision die-casting molds and forging molds; however, when customers have particularly high precision requirements, TTK-50 or ISO-63 materials are recommended to ensure less material loss, thus Ensure the accuracy and surface roughness of the mold. To ensure the precision and surface finish of the processed mold. In our EDM material system, there are two materials to choose from for the same application of the same particle size materials, one with slightly higher hardness and one with lower hardness to meet the requirements of customers with different requirements demand. Therefore, it is very important to choose materials according to the needs of practical applications. For electrodes with high precision requirements, try to choose materials with better strength. 4. Due to the particularity of powder metallurgy, for each parameter of each batch of material, there is a certain fluctuation range of the representative value of the material. For forging and die-casting molds with low surface and precision requirements, it is generally recommended to use materials with coarse particles, such as ISEM-3;
