| 矩形管多点压弯成形截面畸变的数值分析 |
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| 引用本文： | 彭赫力,李明哲,付文智,兰英武.矩形管多点压弯成形截面畸变的数值分析[J].锻压技术,2012,37(1):87-90. |
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| 作者姓名： | 彭赫力 李明哲 付文智 兰英武 |
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| 作者单位： | 吉林大学无模成形技术开发中心,吉林长春,130025 |
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| 摘 要： | 基于有限元分析软件ABAQUS,建立了矩形管多点压弯成形三维有限元模型,对比分析了矩形管整体压弯和多点压弯的截面畸变,研究了矩形管多点压弯成形时摩擦系数、管壁厚度、弯曲半径对截面畸变的影响。结果表明:矩形管多点压弯的截面畸变量略大于矩形管整体压弯的截面畸变量,且最大畸变率小于10%;摩擦系数对截面畸变影响较小;管壁越厚,截面畸变越小;弯曲半径越大,截面畸变越小。成形实验验证了矩形管多点压弯成形的可行性。
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| 关 键 词： | 压弯 矩形管 多点成形 截面畸变 有限元 |
Numerical analysis of cross-section distortion of multi-point press bending for rectangular tube |
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| PENG He-li
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LI Ming-zhe
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FU Wen-zhi
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LAN Ying-wu.Numerical analysis of cross-section distortion of multi-point press bending for rectangular tube[J].Forging & Stamping Technology,2012,37(1):87-90. |
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| Authors: | PENG He-li LI Ming-zhe FU Wen-zhi LAN Ying-wu |
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| Affiliation: | (Dieless Forming Technology Research Center,Jilin University,Changchun 130025,China) |
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| Abstract: | 3D FEM of multi-point press bending of rectangular tube was established based on the analysis software ABAQUS.The cross-section distortion between integral press bending and multi-point press bending of rectangular tube were compared and the effect factors,such as friction coefficient,wall thickness and bending radius were researched for multi-point press bending of rectangular tube.The results show that the cross-section distortion of rectangular tube bended by multi-point die is slightly larger than that formed by integral die,and the maximum cross-sectional distortion of rectangular tube is less than 10%.The friction coefficient has little effect to the cross-section distortion.The thicker the wall thickness is or the larger the bending radius is,the smaller the cross-section distortion of rectangular tube will be.The forming experiment verifies the feasibility of multi-point press bending of rectangular tube. |
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| Keywords: | press bending rectangular tube multi-point forming cross-section distortion FEM |
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