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선형 배열 롤 셋을 이용한 오목형상 강판 성형경로 설계
노형주(H. J. Roh),김광희(K. H. Kim),심도식(D. S. Shim),양동열(D. Y. Yang),정성욱(S. W. Chung),한명수(M. S. Han) 한국소성·가공학회 2008 소성가공 : 한국소성가공학회지 Vol.17 No.7
Incremental forming path to manufacture a thick concave steel plate using the line array roll set is designed. To find the optimum forming path, the forming processes are simulated by the finite element method. A general-purpose commercial software, MSC.MARC is used. A modeling with 8-node hexahedral elastic-plastic solid is performed to predict accurate springback and the analysis process was composed of 18 passes. The proposed forming paths are verified through experiments carried out in the prototype line array roll set. It is found that the process can be successfully applied to the fabrication of the dual curvature ship hull plate.