Research on Hydraulic Push-Pull Bending Process of Ultra-Thin-Walled Tubes
Due to their high strength, high performance, and lightweight characteristics, bent tubes are widely used in many high-end industries, such as aviation, aerospace, shipbuilding, automobile, and petrochemical industries. Ultra-thin-walled (thickness-to-diameter ratio t/D < 0.01) bent tubes are mor...
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| Format: | Article |
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MDPI AG
2021-11-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/12/1932 |
| _version_ | 1797502509770604544 |
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| author | Xin Zhang Changcai Zhao Bing Du Duan Chen Yang Li Zhaojian Han |
| author_facet | Xin Zhang Changcai Zhao Bing Du Duan Chen Yang Li Zhaojian Han |
| author_sort | Xin Zhang |
| collection | DOAJ |
| description | Due to their high strength, high performance, and lightweight characteristics, bent tubes are widely used in many high-end industries, such as aviation, aerospace, shipbuilding, automobile, and petrochemical industries. Ultra-thin-walled (thickness-to-diameter ratio t/D < 0.01) bent tubes are more prone to wrinkling, fracture, and cross-section distortion than ordinary bent tubes, which are difficult to form integrally by traditional bending processes. In this paper, a new bending process with combined loading of hydraulic pressure, push, and pull was proposed to provide a new method for the bending of ultra-thin-walled tube. This process is characterized by the ability to optimize the combination of push, pull, and internal pressure according to the actual bending process in order to minimize the wrinkling of ultra-thin-walled tube during bending. Based on ABAQUS finite element (FE) software, the FE model of the hydraulic push-pull bending process for ultra-thin-walled tube was established. The influence of internal pressure, die clearance, and friction coefficient on the forming quality of bent tubes was discussed, and the optimum process parameters were obtained. Bent tubes with an initial thickness of 0.3 mm, diameter of 60 mm, and bending radius of 165 mm were manufactured in experiments. Through the comparative analysis of experiment and simulation, the accuracy of the FE simulation was verified. |
| first_indexed | 2024-03-10T03:34:06Z |
| format | Article |
| id | doaj.art-4992cbf7f8354c05a9b122c0df9628b5 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T03:34:06Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-4992cbf7f8354c05a9b122c0df9628b52023-11-23T09:33:06ZengMDPI AGMetals2075-47012021-11-011112193210.3390/met11121932Research on Hydraulic Push-Pull Bending Process of Ultra-Thin-Walled TubesXin Zhang0Changcai Zhao1Bing Du2Duan Chen3Yang Li4Zhaojian Han5Key Laboratory of Advanced Forging and Stamping Technology and Science of Ministry of Education, Yanshan University, Qinhuangdao 066004, ChinaKey Laboratory of Advanced Forging and Stamping Technology and Science of Ministry of Education, Yanshan University, Qinhuangdao 066004, ChinaKey Laboratory of Advanced Forging and Stamping Technology and Science of Ministry of Education, Yanshan University, Qinhuangdao 066004, ChinaKey Laboratory of Advanced Forging and Stamping Technology and Science of Ministry of Education, Yanshan University, Qinhuangdao 066004, ChinaKey Laboratory of Advanced Forging and Stamping Technology and Science of Ministry of Education, Yanshan University, Qinhuangdao 066004, ChinaKey Laboratory of Advanced Forging and Stamping Technology and Science of Ministry of Education, Yanshan University, Qinhuangdao 066004, ChinaDue to their high strength, high performance, and lightweight characteristics, bent tubes are widely used in many high-end industries, such as aviation, aerospace, shipbuilding, automobile, and petrochemical industries. Ultra-thin-walled (thickness-to-diameter ratio t/D < 0.01) bent tubes are more prone to wrinkling, fracture, and cross-section distortion than ordinary bent tubes, which are difficult to form integrally by traditional bending processes. In this paper, a new bending process with combined loading of hydraulic pressure, push, and pull was proposed to provide a new method for the bending of ultra-thin-walled tube. This process is characterized by the ability to optimize the combination of push, pull, and internal pressure according to the actual bending process in order to minimize the wrinkling of ultra-thin-walled tube during bending. Based on ABAQUS finite element (FE) software, the FE model of the hydraulic push-pull bending process for ultra-thin-walled tube was established. The influence of internal pressure, die clearance, and friction coefficient on the forming quality of bent tubes was discussed, and the optimum process parameters were obtained. Bent tubes with an initial thickness of 0.3 mm, diameter of 60 mm, and bending radius of 165 mm were manufactured in experiments. Through the comparative analysis of experiment and simulation, the accuracy of the FE simulation was verified.https://www.mdpi.com/2075-4701/11/12/1932ultra-thin-walled tubepush-pull bending processhydraulic pressurefinite element simulation |
| spellingShingle | Xin Zhang Changcai Zhao Bing Du Duan Chen Yang Li Zhaojian Han Research on Hydraulic Push-Pull Bending Process of Ultra-Thin-Walled Tubes Metals ultra-thin-walled tube push-pull bending process hydraulic pressure finite element simulation |
| title | Research on Hydraulic Push-Pull Bending Process of Ultra-Thin-Walled Tubes |
| title_full | Research on Hydraulic Push-Pull Bending Process of Ultra-Thin-Walled Tubes |
| title_fullStr | Research on Hydraulic Push-Pull Bending Process of Ultra-Thin-Walled Tubes |
| title_full_unstemmed | Research on Hydraulic Push-Pull Bending Process of Ultra-Thin-Walled Tubes |
| title_short | Research on Hydraulic Push-Pull Bending Process of Ultra-Thin-Walled Tubes |
| title_sort | research on hydraulic push pull bending process of ultra thin walled tubes |
| topic | ultra-thin-walled tube push-pull bending process hydraulic pressure finite element simulation |
| url | https://www.mdpi.com/2075-4701/11/12/1932 |
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