Study of Hardness and Electrical Properties of PreparedMetal Graphite Composite Brushes


In electric motors, electrical energy is transformed to mechanical energy or vice versa. Electrical energy has to be transformed from a stationary component into moving one, which is done by copper commentator in sliding contact with graphite brushes.
This study includes a technical method to prepare metal – graphite composite brushes. The prepared brushes are tested and found to have mechanical and electrical properties agree with standards.
Key wards : Metal- graphite composite , Brushes , Copper .