| 7050铝合金端框接头断裂原因分析 |
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| 引用本文： | 潘占.7050铝合金端框接头断裂原因分析[J].理化检验(物理分册),2019,55(7):498-500,511. |
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| 作者姓名： | 潘占 |
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| 作者单位： | 中国电子科技集团公司 第三十八研究所,合肥,230088 |
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| 摘 要： | 某7050铝合金端框接头在吊装转移过程中发生接头断裂。采用仿真分析、宏观分析、微观分析、金相检验、硬度测试、力学性能试验、化学成分分析等方法,对端框接头的断裂原因进行了分析。结果表明:该7050铝合金端框接头断裂属于过载断裂,由吊装作业不规范导致吊装点的应力最大值超过材料的强度极限,最终端框接头在吊装点处发生过载断裂。
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| 关 键 词： | 7050铝合金 端框 断裂 过载 吊装 |
Cause Analysis on Fracture of End Frame Joint for 7050 Aluminum Alloy |
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| PAN Zhan.Cause Analysis on Fracture of End Frame Joint for 7050 Aluminum Alloy[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2019,55(7):498-500,511. |
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| Authors: | PAN Zhan |
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| Affiliation: | (No.38 Research Institute of China Electronics Technology Group Corporation,Hefei 230088,China) |
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| Abstract: | A end frame joint of 7050 aluminium alloy broke during hoisting and transferring.By means of simulation analysis,macro analysis,micro analysis,metallographic examination,hardness test,mechanical properties test and chemical composition analysis,the fracture causes of end frame joint were analyzed.The results show that the fracture of the 7050 aluminium alloy end frame joint belongs to overload fracture,and the maximum stress of the hoisting point exceeded the strength limit of the material due to the irregular hoisting operation.Finally,the overload fracture of the end frame joint occurred at the hoisting point. |
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| Keywords: | 7050 aluminum alloy end frame fracture overload hoisting |
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