Simulation and experimental research of the free bending process of a spatial tube
文献类型：期刊论文
| 作者 | Guo, XZ; Ma, YN; Chen, WL; Xiong, H; Xu, Y; Abd El-Aty, A; Jin, K; Jin, K (reprint author), Nanjing Univ Aeronaut & Astronaut, Nanjing 211100, Jiangsu, Peoples R China. |
| 刊名 | JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
 |
| 出版日期 | 2018-05-01 |
| 卷号 | 255页码:137-149 |
| 关键词 | Forming Process Springback Prediction Model Diameters Profile |
| ISSN号 | 0924-0136 |
| 英文摘要 | The free bending technology is regarded as a promising fabricating technology in the recent years. Due to characteristics of complex product shape and dieless forming, this technology arises more and more attention recently. Firstly, this paper analyzed movement track of bending die based on the principle of free bending technology. Then, distribution characteristics of equivalent stress and strain on tube and bending die during different stages of the free bending process were analyzed. Afterwards, this paper studied the influence law of clearance between tube and bending die, fillet radius of guider, feeding speed on the tube free bending quality. Relationship between eccentricity U of bending die and bending radius R of tube relates to the bending program directly. In this paper, U-R relationship was obtained by finite element simulation to verify the accuracy of the built model. FE simulation and bending experiments were conducted based on the research results. The result revealed that dimension of the bent spatial tube was close to the CAD model and proved the reliability of U-R relationship. Deviation of the bending radius and bending angle is supposed to occur due to springback after forming.; The free bending technology is regarded as a promising fabricating technology in the recent years. Due to characteristics of complex product shape and dieless forming, this technology arises more and more attention recently. Firstly, this paper analyzed movement track of bending die based on the principle of free bending technology. Then, distribution characteristics of equivalent stress and strain on tube and bending die during different stages of the free bending process were analyzed. Afterwards, this paper studied the influence law of clearance between tube and bending die, fillet radius of guider, feeding speed on the tube free bending quality. Relationship between eccentricity U of bending die and bending radius R of tube relates to the bending program directly. In this paper, U-R relationship was obtained by finite element simulation to verify the accuracy of the built model. FE simulation and bending experiments were conducted based on the research results. The result revealed that dimension of the bent spatial tube was close to the CAD model and proved the reliability of U-R relationship. Deviation of the bending radius and bending angle is supposed to occur due to springback after forming. |
| 学科主题 | Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| 资助机构 | Natural Science Foundation of Jiangsu Province [BK20151469]; Research Fund of Nanjing University of Aeronautics and Astronautics [YAH17019]; Fundamental Research Funds for the Central Universities [NJ20150023, NJ20160035, NJ20160036]; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79317]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jin, K (reprint author), Nanjing Univ Aeronaut & Astronaut, Nanjing 211100, Jiangsu, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Guo, XZ,Ma, YN,Chen, WL,et al. Simulation and experimental research of the free bending process of a spatial tube[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2018,255:137-149. |
| APA | Guo, XZ.,Ma, YN.,Chen, WL.,Xiong, H.,Xu, Y.,...&Jin, K .(2018).Simulation and experimental research of the free bending process of a spatial tube.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,255,137-149. |
| MLA | Guo, XZ,et al."Simulation and experimental research of the free bending process of a spatial tube".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 255(2018):137-149. |
入库方式： OAI收割
来源：金属研究所
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