| Springback of thin-walled tube NC precision bending and its numerical simulation |
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| 作者姓名： | 谷瑞杰 杨合 詹梅 李恒 |
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| 作者单位： | College of Materials Science and Engineering, Northwestern Polytechnical University, Xi＇an 710072, China |
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| 摘 要： |
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| 关 键 词： | 薄壁管 NC精密弯曲 回弹 精密加工 数值模拟 三维弹塑性FEM模型 |
| 收稿时间： | 2006-04-10 |
| 修稿时间： | 2006-04-25 |
Springback of thin-walled tube NC precision bending and its numerical simulation |
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| GU Rui-jie, YANG He, ZHAN Mei, LI Heng.Springback of thin-walled tube NC precision bending and its numerical simulation[J].Transactions of Nonferrous Metals Society of China,2006,16(B02):631-638. |
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| Authors: | GU Rui-jie YANG He ZHAN Mei LI Heng |
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| Abstract: | The springback is one of the key factors which affect the forming quality of thin-walled tube NC precision bending. The elastic-plastic finite element method was proposed to study the springback process of thin-walled tube NC precision bending and the combination of dynamic explicit algorithm and the static implicit algorithm was proposed to solve the whole process of thin-walled tube NC precision bending. Then, the 3D elastic-plastic finite element model was established based on the DYNAFORM platform, and the model was verified to be reasonable. At last, the springback rule of thin-walled tube NC precision bending and the effect of geometry and material parameters on the springback rule of thin-walled tube NC precision bending were studied, which is useful to controlling the springback of thin-walled tube NC precision bending, and the numerical simulation method can be used to study other effect of parameters on the forming quality of thin-walled tube NC precision bending. |
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| Keywords: | thin-walled tube NC bending precision forming springback simulation |
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