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뿌리기술 공용화를 위한 생산기반 지식 공유형 플랫폼 시스템 개발에 관한 연구
손종인(J. I. Sohn),윤길상(G. S. Yoon),박정진(J. J. Park),허영무(Y. M. Heo) 한국소성가공학회 2012 한국소성가공학회 학술대회 논문집 Vol.2012 No.5
The root technology which means production-based technology, Welding, molds, Plastic working, Surface treatment, Heat treatment, Casting is required for public service by platform system. Platform system is made up web portal system and register knowledge system and the database which is built by register knowledge system is serviced through web portal. The platform system is primarily intended for enterprises that are operating and easier for companies to develop the skills to be performed may be helpful. Unilaterally from information providers to the technical information that is provided along with the ability to efficiently implement improvements, and further improved by establishing a broader information system platform can be expected.
폴리머 분사재를 이용한 마이크로 버 제거 특성에 관한 연구
손종인(Sohn Jong-In),김건희(Kim Gun-Hee),윤길상(Yoon Gil-Sang) 한국생산제조학회 2009 한국공작기계학회 추계학술대회논문집 Vol.2009 No.-
Burr is occurred in mechanical machining process, it is unnecessary creation for highly precision machining. For this reason, deburring process is positively necessary. Especially, micro burr of under several micro meters is difficult to remove through macro deburring process. To micro deburring, we carried out a experimental deburring works using micro abrasive blaster. A micro abrasive was used a polymer media less hardness than WA(Al₂O₃) for only burr removal effect except edge of cutting profile. For experimental variable of micro blasting process was selected jet pressure, scan speed and scan times.
미세형상 가공을 위한 Micro Slot 가공에서의 공구변형에 의한 가공오차 보상
손종인(Jong-In Sohn),윤길상(Gil-Sang Yoon),서태일(Tae-Il Seo) 한국생산제조학회 2008 한국생산제조학회지 Vol.17 No.2
Micro end-milling has been becoming an important machining process to manufacture a number of small products such as micro-devices, bio-chips, micro-patterns and so on. Despite the importance of micro end-milling, many related researches have given grand efforts to micro end-milling phenomenon, for example, micro end-milling mechanism, cutting force modeling and machinability. This paper strongly concerned actual problem, micro tool deflection, which causes excessive machining errors on the workpiece. To solve this problem, machining error prediction method was proposed through a series of test micro cutting and analysis of their SEM images. An iterative algorithm was applied in order to obtain corrected tool path which allows reducing machining errors in spite of tool deflection. Experiments are carried out to validate the proposed approaches. In result, remarkable error reduction could be obtained.
폴리머 분사재를 이용한 마이크로 버 제거 특성에 관한 연구
손종인(Sohn Jong-In),김건희(Kim Gun-Hee),윤길상(Yoon Gil-Sang) 한국생산제조학회 2009 한국생산제조시스템학회 학술발표대회 논문집 Vol.2009 No.10
Burr is occurred in mechanical machining process, it is unnecessary creation for highly precision machining. For this reason, deburring process is positively necessary. Especially, micro burr of under several micro meters is difficult to remove through macro deburring process. To micro deburring, we carried out a experimental deburring works using micro abrasive blaster. A micro abrasive was used a polymer media less hardness than WA(Al₂O₃) for only burr removal effect except edge of cutting profile. For experimental variable of micro blasting process was selected jet pressure, scan speed and scan times.