이준근 2024-01-22T00:38:55Z 2024-01-22T00:38:55Z 2022-01-10 1990-01 https://pubs.kist.re.kr/handle/201004/147252 방전가공 (Electrical Discharge Machining, EDM) Article 3 요업기술, pp.92 - 94 요업기술 92 94 Electrical Discharge Machining ceramics densification microstructural design