Abstract
This report describes the electric discharge surface coating technology which can form the layer of metal or ceramics using electric discharge. According to this technology, thickness of micrometers to millimeters layer can be formed. The characteristic of this technology is as follows. (1)No deformation and no crack. (2)The adhesion magnitude of the layer to the workpiece is very high. (3)A uniform layer can be formed without depending on a worker's skill. (4)The suitable layer can be achieved by choosing electrode material and electrical conditions at EDM. As mentioned above,this technology can expect the application to gas turbine parts, automobile engine parts, etc.
