ROTOR AND COATING METHOD THEREFOR

摘要

With a rotor such as a moving blade and a discharge electrode containing a hard material such cBN kept in a working liquid or a gas, a pulse-like discharge is generated by a discharging power supply between the tip end of the rotor and the discharge electrode to thereby melt the discharge electrode and deposit part of thereof onto the tip end of the rotor, whereby an abrasive coating containing a hard material such as cBN is formed.