{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T19:48:13Z","timestamp":1777924093329,"version":"3.51.4"},"reference-count":23,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2023,7,1]],"date-time":"2023-07-01T00:00:00Z","timestamp":1688169600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/501100004895","name":"European Social Fund","doi-asserted-by":"publisher","award":["NORTE-06-3559-FSE-000107"],"award-info":[{"award-number":["NORTE-06-3559-FSE-000107"]}],"id":[{"id":"10.13039\/501100004895","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture"],"published-print":{"date-parts":[[2024,2]]},"abstract":"<jats:p>In this paper, two advanced sealing methods are proposed to enhance the formability of aluminium alloys in the tube hydroforming process. These methods are aimed at omitting friction force at the contact area between the tube and the die in the feed region and facilitating the material flow to the deformation region. The advanced sealing methods are numerically and experimentally examined against the conventional sealing method by conducting the free bulge test on AA6063 aluminium tubes. The deformation mechanics are deeply analysed in the principal strain space to identify the influence of the sealing methods on deformation paths. In addition, the effectiveness of the advanced sealing methods is evaluated under different lubrication conditions and contact lengths in the feed region. Results show that in the advanced sealing methods compared to the conventional one, the thickness in the feed region does not increase and the necking occurs in larger in-plane strains, leading to a higher bulge height. Results also allow concluding that a higher bulge height is formed using the second advanced sealing method, in which the tube is pressurized from both sides in the feed region. Thus, the advanced sealing methods are recommended for tube hydroforming of aluminium alloys with low formability.<\/jats:p>","DOI":"10.1177\/09544054231184914","type":"journal-article","created":{"date-parts":[[2023,7,1]],"date-time":"2023-07-01T04:26:36Z","timestamp":1688185596000},"page":"442-453","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Improvement of material flow in tube hydroforming by advanced sealing methods"],"prefix":"10.1177","volume":"238","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9478-9783","authenticated-orcid":false,"given":"Mohammad Mehdi","family":"Kasaei","sequence":"first","affiliation":[{"name":"Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), Porto, Portugal"},{"name":"Department of Mechanical Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran"}]},{"given":"Hassan Moslemi","family":"Naeini","sequence":"additional","affiliation":[{"name":"Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran"}]},{"given":"Behnam","family":"Abbaszadeh","sequence":"additional","affiliation":[{"name":"Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran"}]},{"given":"Seyed Jalal","family":"Hashemi","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Technical and Vocational University (TVU), Tehran, Iran"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3272-4591","authenticated-orcid":false,"given":"Lucas FM","family":"da Silva","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal"}]}],"member":"179","published-online":{"date-parts":[[2023,7]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1177\/09544054221078092"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1177\/0954405420958768"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1177\/0954405420962968"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1177\/09544054221138900."},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1177\/09544054221138181"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1177\/09544054221135114"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s12206-014-1041-2"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0924-0136(03)00850-1"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0924-0136(03)00851-3"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmatprotec.2007.03.112"},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tws.2008.12.002"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.1177\/0954405412440218"},{"issue":"1","key":"e_1_3_2_14_2","first-page":"81","article-title":"Effect of sealing position on bulge height in hydroforming of aluminum tubes","volume":"29","author":"Kasaei MM","year":"2018","unstructured":"Kasaei MM, Shahbazi Karami J, Abbaszadeh B, et al. 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