Simulation and experimental research of the free bending process of a spatial tube

IMR OpenIR

	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
发表期刊	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
ISSN	0924-0136
卷号	255 页码:137-149
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.
部门归属	[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
关键词	Forming Process Springback Prediction Model Diameters Profile
学科领域	Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary
资助者	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)
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79317
专题	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.