| Numerical simulation of wrinkle phenomenon during multi-point forming process of shallow rectangle cup |
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| 作者姓名： | 裴永生 李明哲 李雪 隋振 |
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| 作者单位： | RollForgingTechnologyInstitute,JilinUniversity,Changehun130025,China |
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| 基金项目： | SponsoredbytheNationalKeyTechnologiesR&DProgramDuringthe 10 thFiveYearPlanPeriod(GrantNo .2 0 0 1BA2 0 3B11)andTrans centuryTrainingProgram
FoundationforthetalentsoftheMinistryofEducation . |
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| 摘 要： | In this paper, the principle of multi-point forming (MPF) technique is presented. One of the most serious defects, wrinkling, during the multi-point forming process of a shallow rectangle cup is discussed by means of numerical simulation on the shallow rectangle cup forming process. The effects of thickness, material of sheet metal and the pressure of the blank holder are investigated. Based on the simulation results, the reasons and control methods of wrinkling are pointed out. Moreover, the experiment on the multi-point die forming of the shallow rectangle cup by the MPF machine is done to validate the efficiency of the numerical simulation,and the result oroves that the application of an elastic cushion in the forming can restrain wrinkling efficiently.
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| 关 键 词： | 数字模拟 多点成型 褶皱 浅矩形杯 薄板金属 |
Numerical simulation of wrinkle phenomenon during multi-point forming process of shallow rectangle cup |
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| PEI Yong-sheng,LI Ming-zhe,LI Xue,SUI Zhen.Numerical simulation of wrinkle phenomenon during multi-point forming process of shallow rectangle cup[J].Journal of Harbin Institute of Technology,2004,11(3):300-304. |
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| Authors: | PEI Yong-sheng LI Ming-zhe LI Xue SUI Zhen |
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| Abstract: | In this paper, the principle of multi-point forming (MPF) technique is presented. One of the most serious defects, wrinkling, during the multi-point forming process of a shallow rectangle cup is discussed by means of numerical simulation on the shallow rectangle cup forming process. The effects of thickness, material of sheet metal and the pressure of the blank holder are investigated. Based on the simulation results, the reasons and control methods of wrinkling are pointed out. Moreover, the experiment on the multi-point die forming of the shallow rectangle cup by the MPF machine is done to validate the efficiency of the numerical simulation, and the result proves that the application of an elastic cushion in the forming can restrain wrinkling efficiently. |
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| Keywords: | multi-point forming wrinkle numerical simulation shallow rectangle cup |
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