Research on formability of 5052 aluminum alloy sheet in a quasi-static–dynamic tensile process |
| |
| Authors: | Chunfeng Li Dahai Liu Haiping Yu Zhengbo Ji |
| |
| Affiliation: | 1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China;2. National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China;3. Shanghai Aerospace Equipments Manufacturer, Shanghai, 200245, China;1. Department of Plasticity Technology, Shanghai Jiao Tong University, Shanghai 200030, China;2. Department of Mechanical Engineering, University of Sheffield, Sheffield S13JD, UK;3. Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham, Nottingham NG7 2RD, UK |
| |
| Abstract: | In order to establish the efficacy of electromagnetically assisted sheet metal stamping (EMAS), the formability of 5052 aluminum alloy sheet in a quasi-static–dynamic tensile process is experimentally investigated using a combined quasi-static tension and the pulsed electromagnetic forming (EMF) method. Data on the formability of aluminum alloy 5052-O employing this combined loading method is compared with data for traditional quasi-static tensile tests. Results show that the formability of aluminum alloy sheet undergoing a quasi-static–dynamic tensile process is dramatically increased beyond that exhibited in quasi-static tensile tests, and a little higher than or at least similar with that obtained in the fully dynamic EMF process. The forming limits of aluminum samples with both low and high pre-strain levels are almost similar in quasi-static–dynamic tensile process, which makes it possible stretching the sheet to a higher quasi-static pre-strain level without weakening its total quasi-static–dynamic formability. This would enable the use of a quasi-static pre-form fairly close to the quasi-static material limits for design of an EMAS process in manufacturing large aluminum alloy shell parts. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
