Abstract
3dimensinal products have been machined from insulating materials (Si_3N_4, ZrO_2, SiC, Al_2O_3, etc.) on electrical discharge machine by using an assisting electrode method. However, fundamental phenomenon problems related to : processing principle, such as the investigation of the forming conductive layer during machining, are still not been solved completely. In this research, EDM properties have been investigated on glass materials that are transparent and the process in a material can be checked from outside. Most of the glass materials are non-crystalline unlike ceramics that are crystalline. Specific properties of EDM on heat resistance glass were investigated in this research.
