| TA2M钛板扩孔成形中的形状畸变现象研究 |
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| 引用本文： | 韩亮,张凌云.TA2M钛板扩孔成形中的形状畸变现象研究[J].沈阳航空工业学院学报,2009,26(3):19-21,18. |
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| 作者姓名： | 韩亮 张凌云 |
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| 作者单位： | 沈阳航空工业学院辽宁省数字化工艺仿真与试验技术重点实验室,辽宁,沈阳,110136 |
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| 摘 要： | 通过有限元数值模拟和工艺试验相结合的方法对板料厚度为0.96mm的TA2M钛板的扩孔成形过程及结果进行了研究.运用PAM-STAMP有限元数值模拟分析软件对成型过程及卸载回弹结果进行预测.发现TA2M在成型卸载回弹后存在明显的形状畸变现象:孔口非圆化,孔口边缘厚度非均匀减薄以及凸缘非圆化.模拟预测结果与工艺试验结果比较吻合.
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| 关 键 词： | 形状畸变 有限元模拟 扩孔成形 钛板 |
Shape distortion in bore-expanding process with TA2M titanium sheets |
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| HAN Liang,ZHANG Ling-yun.Shape distortion in bore-expanding process with TA2M titanium sheets[J].Journal of Shenyang Institute of Aeronautical Engineering,2009,26(3):19-21,18. |
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| Authors: | HAN Liang ZHANG Ling-yun |
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| Institution: | Key Lab of Liaoning Digital Processes Simulation and Test Technology;Shenyang Institute of Aeronautical Engineering;Liaoning Shenyang 110136 |
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| Abstract: | In this paper,the numerical results are compared with the experimental results of 0.96mm thickness titanium sheets TA2M in the bore-expanding process.The bore-expanding process and results were predicted by PAM-STAMP FEM software.Stronger shape distortions phenomena after springback were found.the expanding hole is not a circle shape,the border of the hole's thickness become thinner and unhomogeneous,the parts flange is not a circle.the FEM results is accorded with experimentation. |
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| Keywords: | shape distortion FEM bore-expanding titanium sheet |
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