| 铝合金超塑性气胀成形壁厚分布工艺研究 |
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| 引用本文： | 蔡云,童国权,葛永成.铝合金超塑性气胀成形壁厚分布工艺研究[J].模具工业,2009,35(3):23-26. |
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| 作者姓名： | 蔡云 童国权 葛永成 |
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| 作者单位： | 南京航空航天大学机电学院,江苏南京,210016 |
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| 摘 要： | 应用MARC软件对铝合金的超塑性胀形进行仿真,分析正反向和正向超塑胀形对成形件壁厚分布以及不同变形量对胀形结果的影响,比较了2种不同胀形方式对成形件壁厚分布和成形极限的影响。结果表明,采用合理的正反胀形可以很好地改善成形件的厚度不均匀性并大大提高成形极限,实验验证了仿真和实验结果相吻合。
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| 关 键 词： | 超塑性 有限元模拟 正反气胀成形 厚度分布 |
Analysis on thickness distribution in superplastic bulge forming of aluminum alloy |
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| CAI Yun,TONG Guo-quan,GE Yong-cheng.Analysis on thickness distribution in superplastic bulge forming of aluminum alloy[J].Die & Mould Industry,2009,35(3):23-26. |
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| Authors: | CAI Yun TONG Guo-quan GE Yong-cheng |
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| Affiliation: | College of Mechanical and Electrical Engineering;Nanjing University of Aeronautics and Astronautics;Nanjing;Jiangsu 210016;China |
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| Abstract: | MARC software was used to simulate superplastic bulge forming process of aluminum alloy.The influence of forward-backward and forward superplastic bulge on the thickness distribution and different deformation amounts on the bulge results were analyzed.And the effects of two kinds of bulge processes on the thickness distribution and forming limit were compared.It is concluded that proper application of forward-backward bulge can improve the uniformity of thickness distribution and greatly increase the formin... |
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| Keywords: | superplasticity FEM simulation forward-backward bulge forming thickness distribution |
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