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Micro EDM을 이용한 Lab-on-a-chip금형의 미세 패턴 제작에 관한 연구
신봉철(B.C. Shin),김규복(K.B. Kim),조명우(M.W. Cho),정우철(W.C. Jung),허영무(Y.M. Heo) 한국소성가공학회 2010 금형가공 심포지엄 Vol.2010 No.11
Recently, analyzing system is studying for applying to biomedical engineering field, actively. Micro fluidics control system has been manufactured using LIGA(Lithographie Galvanoforming and Abforming), Etching, Lithography, and Laser etc. However it is difficult to apply to precision mold master fabrication, efficiently because of long processing time and rising cost of equipments. Therefore, in this study, micro EDM and micro WEDG system were developed to analyze machining characteristics and its efficiency due to tool wear, surface roughness, and process time. Then, optimal machining conditions could be obtained from the analysis. As the results, staggered herringbone mixer which has a high mixing efficiency, one of passive mixer of Lab-on-a-chip, could be fabricated its micro pattern(<50um) of mold master successfully.
신봉철(B. C. Shin),하석재(S. J. Ha),강민형(M. H. Kang),허영무(Y. M. Heo),윤길상(G. S. Yoon),조명우(M. W. Cho) 한국소성·가공학회 2009 소성가공 : 한국소성가공학회지 Vol.18 No.2
Recently, the monitoring technology of machining process is very important to improve productivity and quality in manufacturing filed. Such monitoring technology has been performed to measurement using vibration signal, acoustic emission signal and tool dynamometer. However, micro machining is limited small-scale parts machining because micro tool is very small and weakness to generate signal in micro machining process. Therefore, this study has efficient sensing technology for real monitoring system in micro machine that is proposed to supplement a disadvantage of single-sensor by multi sensor. From experimental result, it was evaluated tool wear and cutting situation according to repetitive slot cutting condition and changing cutting condition, and it was performed monitoring spindle rpm and condition according to compare acceleration signal with current signal.