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

文献类型：期刊论文

作者Tao, Jia1,2; Wu, Jiefeng1,4; Liu, Zhihong1,4; Ma, Jianguo1,4; Ji, Haibiao1,3; Peng, Wuqingliang1,2; Sun, Songwei5; Shen, Xu1,4; Xia, Xiaowei1,3; Zhang, Yong1,2
刊名FUSION ENGINEERING AND DESIGN
出版日期2021-11-01
卷号172
ISSN号0920-3796
关键词Equatorial port extension Welding distortion Inherent strain theory Welding tooling
DOI10.1016/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.
WOS关键词VACUUM VESSEL ; SEQUENCE ; STRAIN
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
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.Chinese Acad Sci, Inst Plasma Phys, HFIPS, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, 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).

入库方式： OAI收割

来源：合肥物质科学研究院

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