| 宽截面铝型材挤压导流模应用研究 |
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| 引用本文： | 高锦张,贾俐俐.宽截面铝型材挤压导流模应用研究[J].东南大学学报(自然科学版),2000,30(2):97-100. |
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| 作者姓名： | 高锦张 贾俐俐 |
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| 作者单位： | 1. 东南大学机械工程系,南京,210096
2. 南京机械高等专科学校,南京 210013 |
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| 摘 要： | 探讨了导流模内挤压铝型材的流动规律。提出了确定导流模最小厚度的理论依据。用流函数法确定了宽截面薄壁铝型材挤压变形动可容速度场、应变速率场及上限功率。讨论了变形程度、磨擦因子等参数对导流模最小理论厚度、挤压载荷的影响。得出薄壁型材导流模厚度的理论最小值。为导流模优化设计提供了理论依据。
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| 关 键 词： | 宽截面 铝型材 挤压 导流模 流函数法 |
Application and Research of the Flow-Guide Die in Wide Section Aluminum Shape Extrusion |
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| Gao Jinzhang,Jia Lili.Application and Research of the Flow-Guide Die in Wide Section Aluminum Shape Extrusion[J].Journal of Southeast University(Natural Science Edition),2000,30(2):97-100. |
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| Authors: | Gao Jinzhang Jia Lili |
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| Institution: | Gao Jinzhang
(Department of Mechanical Engineering, Southeast University, Nanjing 210096)
Jia Lili
(Nanjing institute of Mechanical Technology, Nanjing 210013) |
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| Abstract: | The flow characteristics in Aluminum shape extresion with the flow guide die added are analyzed. The flow function method is used to build the kinematically admissible velocity field, the strain rate field and the upper bound deformation power of wide section Aluminum shape extrusion. The effects of the parameters, such as deformation ratio, frictional factor, on limit height of flow guide die. The useful knowledege for die design can be obtained. |
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| Keywords: | Aluminum shape extrusion the flow guide die flow function method |
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