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[論文] 차체 판넬의 가공 제작을 위한 금형형상의 효율적 모델링
박종천(J. C. Park),이건우(K. W. Lee),전기찬(G. C. Jun) 한국자동차공학회 1993 오토저널 Vol.15 No.3
A procedure has been developed so that a die-face for stamping automobile outer panels can be designed and modelled efficiently. The procedure is composed of four parts each of which corresponds to modeling major components of a die-face, i.e. tipped product, blankholder, draw beads, and step draw.<br/> The modeling techniques developed specifically for die-face design enable a designer to generate the shape of a die-face quickly with the minimum input, and the resulting models can be used in FEM analysis and NC tool path generation. This will lead to the reductions in lead time and man-hours required for the design and manufacture of the stamping dies.
최이천(Y.C.CHOI),유동진(D.J.YOO),전기찬(G.C.JUN) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.11_1
Tailored Blanks are defined as two or more separate pieces of sheet material having the same or dissimilar thickness and/or physical properties, joined together before forming. Its application is being increased especially in the automotive industrial area for the cost reduction, weight saving, and improvement of strength.<br/> This paper describes some experimental investigations on the formability of a door inner. There will be a description of how the laser welded blanks behave in different. combination of thickness and sheet material. To investigate how the combination of thickness and material property influences the movement of welding line, a series of laser welded TIE blanks were tested.<br/> <br/>