Diamond coating should be selected for processing graphite tools. It has the advantages of high hardness, good wear resistance, and low friction coefficient. At this stage, diamond coating is the best choice for graphite processing tools, and it can best reflect the superior performance of graphite tools; The advantage of diamond-coated cemented carbide tools is that they combine the hardness of natural diamond and the strength and fracture toughness of cemented carbide; it can increase the service life of the tool by nearly 10-20 times.
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