U-R relationship prediction method for aluminum alloy circular tube free-bending process based on sensitivity analysis of material parameters

doi:10.1007/s00170-018-2614-5

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	U-R relationship prediction method for aluminum alloy circular tube free-bending process based on sensitivity analysis of material parameters
	Guo, Xunzhong 1; Xiong, Hao 1; Xu, Yong 2,3; Abd El-Aty, Ali 2; Ma, Yannan 1; Zhao, Yonghao 3; Zhang, Shihong 2
刊名	INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
	2018-11-01
卷号	99 期号:5-8 页码:1967-1977
关键词	Free bending Material parameters U-R relationship Sensitivity analysis Power hardening aluminum alloy Prediction method
ISSN号	0268-3768
DOI	10.1007/s00170-018-2614-5
通讯作者	Xu, Yong(yxu@imr.ac.cn)
英文摘要	The bending radius (R) of the bending component is defined by the deflection (U) of the bending die in the tube free-bending process. The U-R relationship is the key factor to obtain the precise geometry size of the complex bending tubular components. Therefore, this study aims at proposing a new method to predict the U-R relationship for the arbitrary power hardening aluminum alloy (Al alloy) circular tube based on the U-R relationship of the reference material and the sensitivity analysis of material parameters, which may reduce many experimental works. In the current study, AA1100 alloy was set as the reference material, and the effects of each material parameter on the U-R relationship were investigated by carrying out the deformation and sensitivity analysis of the FEA simulation results. The results show that the bending radius increases with the decrease of elastic modulus (E), density (rho), and strain-hardening exponent (n) and the increase of strength coefficient (K) and initial yield stress (sigma(s)), where sigma(s) has the greatest influence on the U-R relationship. Moreover, the U-R relationship prediction method for arbitrary power hardening Al alloy circular tube was presented based on the sensitivity analysis of the reference material. Finally, the bending tests of the AA6061-T6 tubes were carried out to prove the accuracy of the U-R relationship prediction method. The bending results show that the experimental U-R relationship of the AA6061-T6 tube was consistent with the predicted value, and the prediction method had good applicability to power hardening Al alloy circular tube.
WOS研究方向	Automation & Control Systems ; Engineering
语种	英语
出版者	SPRINGER LONDON LTD
WOS记录号	WOS:000447803800072
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/129820]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xu, Yong
作者单位	1.Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 211100, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nano & Heterogeneous Mat Ctr, Nanjing 210094, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xunzhong,Xiong, Hao,Xu, Yong,et al. U-R relationship prediction method for aluminum alloy circular tube free-bending process based on sensitivity analysis of material parameters[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2018,99(5-8):1967-1977.
APA	Guo, Xunzhong.,Xiong, Hao.,Xu, Yong.,Abd El-Aty, Ali.,Ma, Yannan.,...&Zhang, Shihong.(2018).U-R relationship prediction method for aluminum alloy circular tube free-bending process based on sensitivity analysis of material parameters.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,99(5-8),1967-1977.
MLA	Guo, Xunzhong,et al."U-R relationship prediction method for aluminum alloy circular tube free-bending process based on sensitivity analysis of material parameters".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 99.5-8(2018):1967-1977.