NGUYEN THANH QUA Kim Jeongyun Dae woong Lee PARK SOHYEON Woo-Tae Park Lee Sang Youp 2024-01-12T04:39:15Z 2024-01-12T04:39:15Z 2021-09-29 2019-11 - https://pubs.kist.re.kr/handle/201004/78334 Micromilling has great potential in fabrication of micromold for lab-on-a-chip applications. However, high surface roughness presents on the mold limited accessibility and utility of the micromilling method. In this paper, we present a magnetic field assisted polishing method to manipulate the iron particles cloud to improve the surface roughness of structured surface. The polishing process integrated in Computer Numerical Control (CNC). By modifying the G-code of CNC program, we were able to precisely control polishing condition such as the polishing path, polishing force and polishing time. Consequently, the burrs and tool marks are completely removed, the roughness of the surface is significantly decreased from 350 nm Ra to 30 nm Ra, and 1200 nm Rz to 300 nm Rz while the deterioration of microstructures minimized. English 대한기계학회 Magnetic Field Assisted Polishing for Micromilled Mold Conference 2 대한기계학회 2019년 학술대회 대한기계학회 2019년 학술대회 KO 제주 2019-11-13