Transactions of Materials and Heat Treatment

Title：The Displacement Boundary Condition for SimulatingBlank Holding Stage of Sheet Metal Forming

Authors： (Huazhong University of Sci. and Tech.)Mo Zhonghua Li Shangjian

Unit：

KeyWords： Sheet Metal Forming Blank Holding Stage Simulation Boundary Condition

ClassificationCode：TG381

year,vol(issue):pagenumber：1994,19(4):0-0

Abstract：

in this paper,the action and importance of displacement boundary condition during theblank holding stage were analyzed. In the finite element simulation, the method of automatic judgingcontact and loading displacement was presented to determinate the displacement boundary condition. Us-ing this method, the author caculated the sheet metal deforination during the blank holding stage and got the result which agreed well with the expenment.

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Reference：

［l］MitalNK，PredicationofBinderWrapinSheetMatelStampingsUsingFiniteElementMethod，Proc．ofthel983Int．Conf．onComputerinEngneering，ASME，1983
［2］TangSC，ComputerPredicationoftheDeformedShapeofaDrawBlankDuringtheBinder－WrapStage．J．App．Metalwork－ing．1980，Vol．l，No．3
［3］ChenKK，aNumericalMethodforComputingtheSheetShapeintheBlankHoldingStageofaDrawDie．ASMEPaper84－WA／DE－6．1984

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