naa a22 4500 510771920 CHVBK 20180411083217.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s11837-013-0578-3 doi (NATIONALLICENCE)springer-10.1007/s11837-013-0578-3 Experimental Observations of 5A02 Aluminum Alloy in Electromagnetically Assisted Tube Hydroforming [Elektronische Daten] [Guannan Chu, Wenjian Liu] To establish the efficiency of electromagnetically assisted tube hydroforming, a typical experimental test for hydroforming, i.e., hydrobulging, was carried out on a 5A02 tube blank by using a combined quasi-static axial feeding and pulsed electromagnetic hydrobulging method. Data on the formability of an aluminum alloy 5A02 tube employing this combined loading method is compared with data for traditional quasi-static tests. The results show that the formability of aluminum alloy undergoing a quasi-static-dynamic process is dramatically increased beyond that exhibited in quasi-static or fully dynamic tests. The ultimate expansion ratio of an aluminum alloy tube undergoing a pulsed electromagnetic hydrobulging process is greatly increased beyond that exhibited in quasi-static hydrobulging tests. Both the expansion ratio and the effective strain exhibited in electromagnetically assisted tube hydroforming tests are about four and two times of that in quasi-static and fully dynamic hydrobulging tests, respectively. The forming limits of aluminum samples with both low and high prestrain levels are almost similar in the electromagnetically assisted tube hydroforming process, which makes it possible to stretch the aluminum alloy to a higher quasi-static prestrain level without weakening its total quasi-static-dynamic formability. TMS, 2013 Chu Guannan National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, 150001, Harbin, People's Republic of China aut Liu Wenjian School of Naval Architecture, Harbin Institute of Technology at Weihai, 264209, Weihai, People's Republic of China aut JOM Springer US; http://www.springer-ny.com 65/5(2013-05-01), 599-603 1047-4838 65:5<599 2013 65 11837 https://doi.org/10.1007/s11837-013-0578-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11837-013-0578-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chu Guannan National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, 150001, Harbin, People's Republic of China aut NATIONALLICENCE 700 1- Liu Wenjian School of Naval Architecture, Harbin Institute of Technology at Weihai, 264209, Weihai, People's Republic of China aut NATIONALLICENCE 773 0- JOM Springer US; http://www.springer-ny.com 65/5(2013-05-01), 599-603 1047-4838 65:5<599 2013 65 11837 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer