{"title":"自由弯曲技术中空间管产品回弹补偿的新策略","authors":"Shuai Zhang , Zhenming Yue , Aijun Xu , Yusen Li , Yuliang Qiu , Fanjuan Meng","doi":"10.1016/j.ijpvp.2024.105305","DOIUrl":null,"url":null,"abstract":"<div><p>Three-dimensional free bending technology (3D-FBT), as an innovative tube forming process, can achieve complex spatial tube components. However, caused by springback problem how to optimize its forming accuracy for the spatially curved components of tubes is still a major issue. In this study, a springback compensation model for variable curvature tube bending components is constructed and validated based on a developed discretization methodology. The central axis curve of the tube is discretized, and the spatial compensation angles in different cylindrical helix elements were incrementally calculated by a springback analysis model, in which the stress neutral layer offset on the cross-section of the tube induced by axial thrust force. Finally, the validation and accuracy of the proposed methodology is proved through a typical 3D tube component of AL6061. By comparing the numerical and experimental results, it is found that the average shape error of the 3D component is 2.62 mm (24.52 mm without compensation).</p></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"212 ","pages":"Article 105305"},"PeriodicalIF":3.0000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A new strategy for springback compensation of spatial tube product in free bending technology\",\"authors\":\"Shuai Zhang , Zhenming Yue , Aijun Xu , Yusen Li , Yuliang Qiu , Fanjuan Meng\",\"doi\":\"10.1016/j.ijpvp.2024.105305\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Three-dimensional free bending technology (3D-FBT), as an innovative tube forming process, can achieve complex spatial tube components. However, caused by springback problem how to optimize its forming accuracy for the spatially curved components of tubes is still a major issue. In this study, a springback compensation model for variable curvature tube bending components is constructed and validated based on a developed discretization methodology. The central axis curve of the tube is discretized, and the spatial compensation angles in different cylindrical helix elements were incrementally calculated by a springback analysis model, in which the stress neutral layer offset on the cross-section of the tube induced by axial thrust force. Finally, the validation and accuracy of the proposed methodology is proved through a typical 3D tube component of AL6061. By comparing the numerical and experimental results, it is found that the average shape error of the 3D component is 2.62 mm (24.52 mm without compensation).</p></div>\",\"PeriodicalId\":54946,\"journal\":{\"name\":\"International Journal of Pressure Vessels and Piping\",\"volume\":\"212 \",\"pages\":\"Article 105305\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2024-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Pressure Vessels and Piping\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0308016124001820\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Pressure Vessels and Piping","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0308016124001820","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
A new strategy for springback compensation of spatial tube product in free bending technology
Three-dimensional free bending technology (3D-FBT), as an innovative tube forming process, can achieve complex spatial tube components. However, caused by springback problem how to optimize its forming accuracy for the spatially curved components of tubes is still a major issue. In this study, a springback compensation model for variable curvature tube bending components is constructed and validated based on a developed discretization methodology. The central axis curve of the tube is discretized, and the spatial compensation angles in different cylindrical helix elements were incrementally calculated by a springback analysis model, in which the stress neutral layer offset on the cross-section of the tube induced by axial thrust force. Finally, the validation and accuracy of the proposed methodology is proved through a typical 3D tube component of AL6061. By comparing the numerical and experimental results, it is found that the average shape error of the 3D component is 2.62 mm (24.52 mm without compensation).
期刊介绍：
Pressure vessel engineering technology is of importance in many branches of industry. This journal publishes the latest research results and related information on all its associated aspects, with particular emphasis on the structural integrity assessment, maintenance and life extension of pressurised process engineering plants.
The anticipated coverage of the International Journal of Pressure Vessels and Piping ranges from simple mass-produced pressure vessels to large custom-built vessels and tanks. Pressure vessels technology is a developing field, and contributions on the following topics will therefore be welcome:
• Pressure vessel engineering
• Structural integrity assessment
• Design methods
• Codes and standards
• Fabrication and welding
• Materials properties requirements
• Inspection and quality management
• Maintenance and life extension
• Ageing and environmental effects
• Life management
Of particular importance are papers covering aspects of significant practical application which could lead to major improvements in economy, reliability and useful life. While most accepted papers represent the results of original applied research, critical reviews of topical interest by world-leading experts will also appear from time to time.
International Journal of Pressure Vessels and Piping is indispensable reading for engineering professionals involved in the energy, petrochemicals, process plant, transport, aerospace and related industries; for manufacturers of pressure vessels and ancillary equipment; and for academics pursuing research in these areas.
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