| 硬质合金圆环与钢基体钎焊过程的数值模拟 |
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| 引用本文： | 岳喜山,孙凤莲.硬质合金圆环与钢基体钎焊过程的数值模拟[J].焊接学报,2005,26(9):35-38,43. |
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| 作者姓名： | 岳喜山 孙凤莲 |
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| 作者单位： | 哈尔滨理工大学,材料科学与工程学院,哈尔滨,150040;哈尔滨理工大学,材料科学与工程学院,哈尔滨,150040 |
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| 摘 要： | 针对硬质合金存钎焊冷却过程产生很大的热应力而导致钎焊裂纹这一问题，采用有限元分析方法对硬质合金圆环与钢基体钎焊时冷却过程中的残余应力的分布情况进行模拟，研究接头形状、钎缝厚度对焊后残余应力的大小及分布规律的影响。结果表明，钢体上开工艺槽导致焊岳残余应力增加，对接头强度不利；钎缝厚度存在一最佳值一经试验验证，计算结果与试验基本一致。
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| 关 键 词： | 硬质合金圆环 钎焊 残余应力 数值模拟 |
| 文章编号： | 0253-306X（2005）09-35-05 |
| 收稿时间： | 2004-08-31 |
| 修稿时间： | 2004-08-31 |
The numerical simulation of the brazing process of cemented carbide cirque and steel |
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| YUE Xi-shan and SUN Feng-lian.The numerical simulation of the brazing process of cemented carbide cirque and steel[J].Transactions of The China Welding Institution,2005,26(9):35-38,43. |
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| Authors: | YUE Xi-shan and SUN Feng-lian |
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| Affiliation: | College of Material Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China and College of Material Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China |
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| Abstract: | Aiming at brazing crack induced by thermal stress during the process of brazing,finite element method was used to analyze the residual stress of joints between the cemented carbide cirque and steel.The effects of joint shapes and filler metal thickness on the distribution of residual stress were researched.The result showed that notch was disadvantageous to the strength of joints,and the optimal value of filler metal thickness existed.The calculated result was consistent with that of the experiment. |
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| Keywords: | cemented carbide cirque brazing residual stress numerical simulation |
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