What is the difference between graphite copper and copper removal?

It is good to use graphite as the electrode. It discharges quickly and does not deposit carbon. It is best to use copper electrode for the mirror. Because graphite electrode is not suitable for light combination. And when discharging, the greater the current, the better. The smaller the current, the more carbon is deposited. But copper electrode is the opposite.

Graphite has the advantages of fast processing speed, no deformation, low loss and convenient manual cleaning of corners. Disadvantages are irrecoverable and few processing points. Usage: it is difficult to process and shape, and the graphite is used deeply. Large-scale use of easy-to-process copper is easy to process and can be recycled.

The overall cost of the two is basically the same.