Simulation and control of welding distortion for the CFETR equatorial port extension mock-up

doi:10.1016/j.fusengdes.2021.112923

	Simulation and control of welding distortion for the CFETR equatorial port extension mock-up
	Tao, Jia 2,3; Wu, Jiefeng 2,4; Liu, Zhihong 2,4; Ma, Jianguo 2,4; Ji, Haibiao 1,2; Peng, Wuqingliang 2,3; Sun, Songwei 5; Shen, Xu 2,4; Xia, Xiaowei 1,2; Zhang, Yong 2,3
刊名	FUSION ENGINEERING AND DESIGN
	2021-11-01
卷号	172
关键词	Equatorial port extension Welding distortion Inherent strain theory Welding tooling
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2021.112923
通讯作者	Tao, Jia()
英文摘要	The CFETR equatorial port extension is a double-walled stepped structure like the main body of the vacuum vessel (VV). During the 1/8 VV mock-up fabrication, this part will be connected to the main vessel by welding. The high-density welded joints in the equatorial port extension mock-up will badly affect the overall profile of the whole structure. The shrinkage of the open end makes the fit-up accuracy unable to meet the requirement. In this paper, to accurately predict the welding distortion of the equatorial port extension mock-up, the distortions of local models were evaluated by the thermo-elastic-plastic (TEP) method first to validate the results obtained by the inherent strain method. Then the welding distortions in three stages without external constraints conditions were simulated and analyzed for the design of the welding tooling. The comparison between the welding deformation with and without tooling presents that the dimensional accuracy of the whole structure is basically within the tolerance, proving that the designed tooling is effective. The simulated results were also validated by the actual measured results. The predictions and designs in this article can provide theoretical guidance for the practical processing of the CFETR equatorial port extension mock-up.
资助项目	National Development and Reform Commission[2018-000052-73-01-001228] ; National Nature Science Foundation of China[12105185] ; University Natural Science Research Project of Anhui Province[KJ2019A0843] ; Commercial Aircraft Corporation of China Ltd
WOS关键词	VACUUM VESSEL ; SEQUENCE ; STRAIN
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000719881400001
资助机构	National Development and Reform Commission ; National Nature Science Foundation of China ; University Natural Science Research Project of Anhui Province ; Commercial Aircraft Corporation of China Ltd
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/126574]
专题	中国科学院合肥物质科学研究院
通讯作者	Tao, Jia
作者单位	1.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, HFIPS, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China 4.Anhui Prov Key Lab Special Welding Technol, Huainan 232000, Peoples R China 5.Commercial Aircraft Corp China Ltd, Shanghai 200126, Peoples R China
推荐引用方式 GB/T 7714	Tao, Jia,Wu, Jiefeng,Liu, Zhihong,et al. Simulation and control of welding distortion for the CFETR equatorial port extension mock-up[J]. FUSION ENGINEERING AND DESIGN,2021,172.
APA	Tao, Jia.,Wu, Jiefeng.,Liu, Zhihong.,Ma, Jianguo.,Ji, Haibiao.,...&Xiong, Qiuyue.(2021).Simulation and control of welding distortion for the CFETR equatorial port extension mock-up.FUSION ENGINEERING AND DESIGN,172.
MLA	Tao, Jia,et al."Simulation and control of welding distortion for the CFETR equatorial port extension mock-up".FUSION ENGINEERING AND DESIGN 172(2021).