JKSPE Vitreous Carbon zirconia 정밀공학회 DISCRIM Characteristic Soda Lime machining EDM international journal of advanced manufacturing technology 포스터 cemented carbide 실리콘 ZrO2 Conference 춘계학술대회 Microgrinding Micro grinding Autumn KSPE Silicon elsevier 유리질 탄소 micro GC Materials & Design 춘계 PRESM2025 Ceramic AMT 2024 2025 edge Glassy Carbon VC 유리질탄소 PRESM 한국정밀공학회 2018 Silicon Wafer 실리콘 웨이퍼 IJAMT WC Soda-lime 학술대회