It can perform high-precision processing. 2813 holes with a diameter of 0.02mm can be drilled on a 13 × 13mm ultra-fine graphite rod. The distance between the holes is 0.05mm, and the strength of copper is lower than that of ultra-fine graphite. Such fine processing is Powerless.
Also, it is easy to process, and ultrafine graphite is made into electrodes, with only 1 / 3-1 / 5 copper electrodes.
Finally, the thermal expansion coefficient of ultrafine graphite is only 1/4 of that of copper, so the original design size of the die will not change due to the electrode heating during processing, and the electrode has good dimensional stability.