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Xantan gum로 코팅된 CI-particle를 이용한 MR Polishing 특성에 관한 연구
이정원(J.W.Lee),하석재(S.J.Ha),신봉철(B.C.Shin),김동우(D.W.Kim),조명우(M.W.Cho),최형진(H.J.Choi) 한국소성가공학회 2011 금형가공 심포지엄 Vol.2011 No.9
An finishing process using magnetorheological fluid (MR) fluid has been developed as a new precision finishing technique to obtain a fine metal surface. For MR polishing process, MR fluid was consists of CI particles, nonmagnetic polishing abrasives, water and stabilizers. One of the main ingredients in MR fluid is the magnetic CI particles. But carbonyl iron used in MR fluids a severe corrosion problem. Through coated on the CI particles had study the defect supplementation. It is understand the rheological behavior of the MR fluid based on the coated CI particles. Also the objectives of this research is to investigate the surface roughness obtained from the MR polishing process.
다중 인서트 제품 사출성형 시 문제점에 대한 해석적 고찰
이정원(J. W. Lee),윤길상(G. S. Yoon),김건희(G. H. Kim),손종인(J. I. Sohn) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.4
In this study, the process problems and characteristics in the multi-materials inserted injection molding process were analyzed by CAE analysis method. In the inserted plastic injection molding process, inserted objects have effects on resin flow and the distribution of mold surface temperature. Therefore, the CAE analysis for investigation of molding process is needed before the fabrication of injection molds.