| Numerical simulation of influence of viscous adhesive stress on viscous pressure bulging process of hemispherical sphere |
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| 作者姓名： | 刘建光 王忠金 王仲仁 |
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| 作者单位： | School of Materials Science and Engineering，School of Materials Science and Engineering，School of Materials Science and Engineering Harbin Institute of Technology，Harbin 150001，China，Harbin Institute of Technology，Harbin 150001，China，Harbin Institute of Technology，Harbin 150001，China |
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| 基金项目： | Project(5 0 2 75 0 3 5 )supportedbytheNationalNaturalScienceFoundationofChina |
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| 摘 要： | 1 INTRODUCTIONViscouspressureforming(VPF)isanewdevel opedtechnologyforsheetmetalflexibleforming ,whichusesakindofsemi solid ,flowableandviscousmediumaspressure carryingmedium15] .Sheetmet alisaffectednotonlybynormalpressureofviscousmediumbutalsobytangentadhesivestressofviscousmediuminVPFprocess.Theactionofviscousmedi umonsheetmetalimprovessheetmetalformability .Itcanpostponelocalneckinginthesheetmetalandcanmakethethicknessdistributeuniformly6 9] .Theviscosityofviscousmediumisoneofth…
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Numerical simulation of influence of viscous adhesive stress on viscous pressure bulging process of hemispherical sphere |
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| LIU Jian-guang,WANG Zhong-jin,WANG Zhong-ren.Numerical simulation of influence of viscous adhesive stress on viscous pressure bulging process of hemispherical sphere[J].Transactions of Nonferrous Metals Society of China,2003,13(6). |
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| Authors: | LIU Jian-guang WANG Zhong-jin WANG Zhong-ren |
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| Abstract: | The mechanical model of viscous pressure bulging process is presented. The viscous pressure bulging process of hemispherical sphere is analyzed by the numerical simulation and experiments. The research results show that the viscosity of viscous medium significantly affected the thickness distribution, strain distribution and shape of hemispherical sphere, which provides analytic basis for selecting reasonably viscous medium and designing process of viscous pressure forming. |
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| Keywords: | viscous pressure forming(VPF) hemispherical sphere bulging numerical simulation viscous adhesive stress |
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