Abstract
The term “ceramics” is broadly used in industry nowadays, referring to a wide spectrum of materials with greater hardness, chemical stability, greater resistance to wear and high-temperature resistance to corrosion. To apply these functions to ceramic products, it is necessary that ceramics are machined into complex shapes. WEDM is generally known as a machining method for making a complex ruled surface by wire scanning. In this study, we machined insulating Si3N4 ceramics by WEDM. We discuss the effects of wire tension on machining characteristics in the machining of insulating ceramics. Machined shapes are also investigated in relation to the machining accuracy of a rod extracted from a thick plate and sliced thin plates.
