Magnetic-Aided Electrospark Deposition

A method for depositing materials onto a surface of a workpiece by using a magnetic-aided electrospark deposition system, said method comprising:

• a) fixing an anode of the system to a movement drive system,
• b) magnetizing the anode by an electromagnet or configuring said anode as a permanent magnet such that coating powders are adhered onto a tip or surface of the anode where it is in physical contact with the workpiece,
• c) connecting the workpiece to a negative polarity of the system and placing the workpiece on a movable working table,
• d) setting an amplitude of ultrasonic vibration to be generated by an ultrasonic generator,
• e) switching on the ultrasonic generator for exerting said ultrasonic vibration to the anode to create a micro-gap between the coating powders adhered on the anode and the workpiece,
• f) switching on a power supply which is connected to said anode and workpiece to create a spark at the micro-gap,
• g) discharging the coating powders which are adhered on the surface of the anode to a surface of the workpiece when the size of the micro-gap is increased by a vertical displacement of the anode away from the workpiece via the ultrasonic vibration exerted by the ultrasonic generator, thereby decreasing plasma pressure of the spark.