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Simulation and experimental research of the free bending process of a spatial tube
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.
2018-05-01
Source PublicationJOURNAL OF MATERIALS PROCESSING TECHNOLOGY
ISSN0924-0136
Volume255Pages:137-149
AbstractThe 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.
description.department[guo, xunzhong ; ma, yannan ; xiong, hao] nanjing univ aeronaut & astronaut, coll mat sci & technol, nanjing 211100, jiangsu, peoples r china ; [chen, wenliang ; jin, kai] nanjing univ aeronaut & astronaut, coll mech & elect engn, nanjing 210016, jiangsu, peoples r china ; [xu, yong ; abd el-aty, ali] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china
KeywordForming Process Springback Prediction Model Diameters Profile
Subject AreaEngineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary
Funding OrganizationNatural 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)
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79317
Collection中国科学院金属研究所
Corresponding AuthorJin, K (reprint author), Nanjing Univ Aeronaut & Astronaut, Nanjing 211100, Jiangsu, Peoples R China.
Recommended Citation
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.
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