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백형창,김병희,장인배,Baek, Hyeong-Chang,Kim, Byeong-Hee,Chang, In-Bae 강원대학교 산업기술연구소 1999 産業技術硏究 Vol.19 No.-
This is the pre-study to pile up the basic technique for the electro-discharge machining in the field of micro-drilling. The machined chips are flowed out from the machining area by the flow arisen from the high speed rotation of the electrode. The cylindrical shape electrode, whose diameter is 0.5mm, is clamped by the three point clamping type clamper and the clamper is attached at the front shaft of the high speed rotating DC motor. The current for machining is controlled by pulse width modulation technique and the machining conditions such as frequency and duty ratio are changed to find out the effect of the variables for machined results.
플라즈마를 이용한 고온선삭가공에서 공작물 형상에 따른 표면온도 분포 특성
김진남,정연택,백형창,이광범,박양수 三陟大學校 産業科學技術硏究所 2002 産業科學技術硏究論文集 Vol.7 No.4
Temperature measurement under plasma hot machining is needed for optimal operating condition and implementation of process control algorithms. The experimental analysis of the surface temperature profile of Inconel 718 for plasma hot machining in order to investigate the workpiece geometric effect is presented in this paper. An experimental study indicated that the discontinuous of workpiece diameter have the greatest impact on the surface temperature profile.