Influence of tool rotation speed and feed rate on the forming limit of friction stir welded AA6061-T6 sheets:
作者： Perumalla Janaki Ramulu , Satish V Kailas , R Ganesh Narayanan
关键词:
摘要: In this study, the influence of tool rotation speed and feed rate on forming limit friction stir welded Al 6061-T651 sheets has been investigated. The curve was evaluated by dome height test performed all sheets. welding trials were conducted at a 1300 1400 r/min 90 100 mm/min. A third trial rotational 1500 120 It is found that with increase in speed, from to r/min, for constant rate, blank improved mm/min, it decreased. better than unwelded thickness gradient after severe cases blanks made higher lower speed. strain hardening exponent weld (n) increases decreases rate. demonstrated change respect parameters due distribution severity region during forming. There not much variation among tested. When compared sheets, near-plane-strain condition, but lesser stretching paths.
sagepub.com
sci-hub.se 参考文章(27)
Yutaka S Sato, Yusuke Sugiura, Yohei Shoji, Seung Hwan C Park, Hiroyuki Kokawa, Keisuke Ikeda, Post-weld formability of friction stir welded Al alloy 5052 Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 369, pp. 138- 143 ,(2004) , 10.1016/J.MSEA.2003.11.035
Suk Hoon Kang, Hee-Suk Chung, Heung Nam Han, Kyu Hwan Oh, Chang Gil Lee, Sung-Joon Kim, Relationship between formability and microstructure of Al alloy sheet locally modified by friction stir processing Scripta Materialia. ,vol. 57, pp. 17- 20 ,(2007) , 10.1016/J.SCRIPTAMAT.2007.03.021
B Srinivas Naik, P Janaki Ramulu, R Ganesh Narayanan, Application of a few necking criteria in predicting the forming limit of unwelded and tailor-welded blanks Journal of Strain Analysis for Engineering Design. ,vol. 45, pp. 79- 96 ,(2010) , 10.1243/03093247JSA562
F.C. Liu, Z.Y. Ma, Influence of Tool Dimension and Welding Parameters on Microstructure and Mechanical Properties of Friction-Stir-Welded 6061-T651 Aluminum Alloy Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 39, pp. 2378- 2388 ,(2008) , 10.1007/S11661-008-9586-2
Wanchuck Woo, Levente Balogh, Tamás Ungár, Hahn Choo, Zhili Feng, Grain structure and dislocation density measurements in a friction-stir welded aluminum alloy using X-ray peak profile analysis Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 498, pp. 308- 313 ,(2008) , 10.1016/J.MSEA.2008.08.007
P. Cavaliere, A. De Santis, F. Panella, A. Squillace, Effect of welding parameters on mechanical and microstructural properties of dissimilar AA6082–AA2024 joints produced by friction stir welding Materials & Design. ,vol. 30, pp. 609- 616 ,(2009) , 10.1016/J.MATDES.2008.05.044
R Ganesh Narayanan, K Narasimhan, Influence of the weld conditions on the forming-limit strains of tailor-welded blanks: Journal of Strain Analysis for Engineering Design. ,vol. 43, pp. 217- 227 ,(2008) , 10.1243/03093247JSA344
Daeyong Kim, Wonoh Lee, Junehyung Kim, Kyung-Hwan Chung, Chongmin Kim, Kazutaka Okamoto, R.H. Wagoner, Kwansoo Chung, Macro-performance evaluation of friction stir welded automotive tailor-welded blank sheets: Part II – Formability International Journal of Solids and Structures. ,vol. 47, pp. 1063- 1081 ,(2010) , 10.1016/J.IJSOLSTR.2009.12.021
M. P. Miles, T. W. Nelson, B. J. Decker, Formability and strength of friction-stir-welded aluminum sheets Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 35, pp. 3461- 3468 ,(2004) , 10.1007/S11661-004-0183-8
M Ericsson, Influence of welding speed on the fatigue of friction stir welds, and comparison with MIG and TIG International Journal of Fatigue. ,vol. 25, pp. 1379- 1387 ,(2003) , 10.1016/S0142-1123(03)00059-8