Coupled Modeling of Formability Test for Electromagnetic Forming of Aluminum Sheet
| Autor: | Ching-JuiHuang, 黃敬睿 |
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| Rok vydání: | 2012 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 100 Aluminum alloy has the characteristics of high strength and lightweight, which is widely applied to aeronautical, automobile industries and 3C (computer, consumer electronics and communication) industries. Forming aluminum sheet by Electromagnetic Forming Process (EMFP) has the advantages to increase formability and avoid the spring-back problem. In this research, the formability test for electromagnetic forming process was established. The Forming Limit Diagram at high strain rate up to 9000 s-1 for different strain path in the second quadrant were generated by changing the shape of an aluminum alloy Al6061-T6 sheet and ring punch geometry. Using the Electromagnetic coupled finite element software LS-DYNA 980 to the formability test is simulated and compared with the experimental results. The proposed experimental design has been confirmed to be able to obtain the forming limit of sheet at different strain path in the second quadrant. The coupled simulation could predict the formability test for electromagnetic forming is good agreement with the experimental rasults. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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