PIEZO Vitreous Carbon 정밀공학회 2024 춘계학술대회 유리질탄소 Silicon Lab on a Chip micro grinding Soda Lime AI AMT discharge crater JMST Materials & Design LabVIEW 정밀 2025 실리콘 소다라임 cemented carbide Ceramic GC EDM VC 포스터 Needle Soda-lime glass Soda-lime DISCRIM international journal of advanced manufacturing technology crater 춘계 Bi-LSTM PRESM2025 Glassy Carbon 실리콘 웨이퍼 ZrO2 한국정밀공학회 electrical discharge machining zirconia 소다라임유리 PRESM 2018 WC Autumn Characteristic IJAMT 학술대회 Conference JKSPE 유리질 탄소 Microgrinding Journal of Mechanical Science and Technology KSPE edge micro Silicon Wafer machining elsevier PCD Microneedle