Copper material is a non-renewable resource, the price trend will become more and more expensive, and the price of graphite material will stabilize. In recent years, the price of copper materials has continued to rise, and major graphite manufacturers have continuously improved the process of making graphite to make it more cost-effective.
At present, there are many different grades of graphite for different suppliers in the world-renowned graphite suppliers. Generally classified according to the average particle diameter of graphite materials, particle diameter ≤φ4 μm is defined as fine graphite, particles between φ5 ~ φ10 μm are defined as medium graphite, and particles above 10 μm are defined as coarse graphite. The smaller the particle diameter, the more expensive the material. You can choose a suitable graphite material according to the requirements and cost of EDM.
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