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유압펌프용 실린더 블록의 분말야금 성형공정의 3 차원 유한요소해석
조주현(J. H. Cho),권영삼(Y. S. Kwon),정성택(S. T. Chung),이민철(M. C. Lee),전만수(M. S. Jeon) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
In this study, three-dimensional finite element analysis of a powder metallurgy compaction process is carried out to find an optimized process parameters for a complicated cylinder block of a hydraulic pump of a 22ton excavator. The commercial CAE S/W for powder metallurgy, PMsolver, is used to simulate the compaction process. The compaction process and its analysis information are introduced in detail. Finite element predictions are applied to improving the process design and compared with the experiments. It has been shown that the finite element predictions are quantitatively in good agreement with the experiments in terms of density distribution.
진동특성 및 물성을 고려한 치과용 스케일러 분말사출성형기술개발
고영배(Y.B. Ko),황철진(C.J. Hwang),김종선(J.S. Kim),정성택(S.T. Chung),권영삼(Y.S. Kwon),이정배(J.B. Lee) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
Powder injection molding(PIM) is widely used for many parts in the field of automotives, electronics and medical industries, due to the capability of net shaping for complex 3-D geometry. Powder injection mold design for the dental scaler tip, a component of medical appliance, was presented. In comparison with conventional machining process, powder injection molding has many advantages, specially in price and dimensional stability, for molding dental scaler tip which has complex geometry. Both product design and mold design for dental scaler tip were presented. The rapid mold concept was applied to manufacture the various forms and materials of dental scaler tip including vibration characteristics.