| 新型等通道转角挤压模具优化设计 |
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| 引用本文： | 惠鸿忠,陈莲. 新型等通道转角挤压模具优化设计[J]. 机械设计与制造, 2009, 0(9) |
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| 作者姓名： | 惠鸿忠 陈莲 |
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| 作者单位： | 1. 聊城大学,汽车与交通工程学院,聊城,252059
2. 山东第二技术学院,机电工程系,聊城,252059 |
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| 摘 要： | 设计出一种新型的等通道转角挤压模具,推导出该模具下工件变形等效应变值的理论表达式,并应用3D有限元分析技术,分析了模具转角区的外倒角半径R和内倒角半径r的变化对工件变形的变形行为、应变分布和挤压所需的最大栽荷的影响.研究结果表明,R和r的增大都可以减小变形死区面积,但r影响更显著;R的增大将导致最大载荷的迅速减小,而r对其影响甚微.
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| 关 键 词： | 等通道转角挤压 等效应变 有限元 最大载荷 |
Optimal design of a new die in ECAP |
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| HUI Hong-zhong,CHEN Lian. Optimal design of a new die in ECAP[J]. Machinery Design & Manufacture, 2009, 0(9) |
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| Authors: | HUI Hong-zhong CHEN Lian |
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| Affiliation: | 1School of Automobile & Transportation Engineering;Liaocheng University;Liaocheng 252059;China;2School Shandong Institute of Technology Electrical Engineering;Liaocheng;China |
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| Abstract: | The principle of a new Equal-Channel Angular Pressing(ECAP)die which has different fillet radii at the corner was illustrated. A more comprehensive formula which can be used to estimate the equivalent strain on the deformed work-piece was established. The effect of outer fillet radii R and inter fillet radiir on the deformation behavior,the distribution of the equivalent strain and the maximum load was analyzed by 3D Finite Element Analysis (FEA). It shows that,the increase of R and r,the area of dead zone ... |
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| Keywords: | Equal-channel angular pressing Equivalent strain Finite element analysis Maximum load |
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