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양민양 대한기계학회 1988 대한기계학회논문집 Vol.12 No.6
본 연구에서는 공구마멸에 대한 정량적인 해석을 바탕으로 현대 산업사회의 주요소재인 강(steel)에 대한 최적 공구재를 선정하는 방법을 제시하므로서 앞으로의 공구재 개발에 대한 이론적인 접근을 시도하였다. Theoretical considerations in the development of new cutting tool materials for high speed machining is presented. The progressive wear of cutting tools is assumed to consist of the abrasive and solution components as major modes. Theoretical calculations of relative wear rates between various tool materials based on the two modes are possible using their hardness and solubility data. Assuming cementite as the major hard particles in machining steels, relative wear rates of possible tool materials were calculated. The results indicate that $Al_{2}$O$_{3}$ in oxides, HfN in nitrides and HfC in carbides are the optimal tool materials from the view point of mechanical and thermochemical wear resistance. And several methods for improving the fracture toughness of the above tool materials are suggested.
컴퓨터 비젼을 이용한 자유곡면의 CAM시스템에 관한 연구
양민양,유진규 대한기계학회 1990 대한기계학회논문집 Vol.14 No.4
본 연구에서는 자유곡면 상의 특징점 추출을 위하여 실체모형에 인위적으로 격자모형을 만들어 넣어 해결하였다.
양민양,최종근,Yang, Min-Yang,Choe, Jong-Geun 대한기계학회 1997 大韓機械學會論文集A Vol.21 No.2
This paper presents development of a practical tool deflection compensation system in order to reduce the machining error from the tool deflection compensation system in order to reduce the machining error from the tool deflection in the end-milling process. The devised system is a tool adapter which includes 1-axes force sensor for detecting tool deflection and 2-axes tool tilting device for adjusting tool position through computer interface on line process. Experimental in investigations for typical shaped workpieces representing various end milling situations are performed to verify the ability of the system to suppress the surface errors due to tool deflections. With the system, it is possible to get precise machining surface without any excessive machining error due to increased cutting force in more productive machining conditions.