Formability Evaluation of FSW Blanks Made of Aluminum Sheet: Influence of Welding Speed and Tool Rotation Speed |
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| Journal | Advanced Materials Research (Volume 410) |
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| Volume | Processing and Fabrication of Advanced Materials |
| Edited by | Alan K.T. Lau, T. S. Srivatsan, Debes Bhattacharyya, Ming Qiu Zhang and Mabel M. P. Ho |
| Pages | 287-290 |
| DOI | 10.4028/www.scientific.net/AMR.410.287 |
| Citation | P. Janaki Ramulu et al., 2011, Advanced Materials Research, 410, 287 |
| Online since | November, 2011 |
| Authors | P. Janaki Ramulu, R. Ganesh Narayanan, Satish V. Kailash, Jayachandra Reddy |
| Keywords | Forming Limit Curve, Friction Stir Welding (FSW), Thinning, Tool Rotation Speed, Welding Speed |
| Abstract | The main aim of the work is to analyze the influence of welding speed and tool rotation speed on the forming behavior of FSW blanks. The FSW blanks are made of 6061 Al sheet of 2.1 mm thickness. The welded sheets are made at two different optimized levels of welding speed (90 and 100mm/min) and tool rotation speed (1300 and 1400 rpm). The effect of FSW parameters on the forming limit curve (FLC) and thickness distribution was analyzed by performing limit dome height (LDH) tests at few pre-defined stretching strain paths. It is observed that FSW blanks exhibit more formability as compared to un-welded sheets. The forming limit is found to improve with increase in tool rotation speed and it decreases with increase in welding speed. An attempt has been made to relate the thinning gradient developed during necking with the forming limit at different welding conditions. |
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