| 电弧超声对Q235A的SMAW焊缝组织和性能的影响 |
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| 引用本文： | 何龙标,郝红伟,李路明,文雄伟,吴敏生.电弧超声对Q235A的SMAW焊缝组织和性能的影响[J].热加工工艺,2006,35(3):11-13. |
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| 作者姓名： | 何龙标 郝红伟 李路明 文雄伟 吴敏生 |
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| 作者单位： | 1. 清华大学,机械工程系
2. 清华大学,航空航天学院,北京,100084 |
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| 摘 要： | 作为焊接电弧的热源，对其施加高频调制后可变成可控的超声发射源。通过对比常规SMAW和电弧超声作用下SMAW的Q235A焊缝组织，发现电弧超声能够细化熔合区晶粒，并使得粗晶区宽度变窄；同时．磁记忆检测法的结果表明，电弧超声改善了焊接接头的残余应力分布。
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| 关 键 词： | 电弧超声 细化晶粒 残余应力 |
| 文章编号： | 1001-3814(2006)03-0011-03 |
| 收稿时间： | 2005-08-25 |
| 修稿时间： | 2005年8月25日 |
Effect of Arc-ultrasonic on Welding Structure and Property of Q235A Steel with SMAW |
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| HE Long-biao,HAO Hong-wei,LI Lu-ming,WEN Xiong-wei,WU Min-sheng.Effect of Arc-ultrasonic on Welding Structure and Property of Q235A Steel with SMAW[J].Hot Working Technology,2006,35(3):11-13. |
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| Authors: | HE Long-biao HAO Hong-wei LI Lu-ming WEN Xiong-wei WU Min-sheng |
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| Affiliation: | 1 .Dept. of Mech. Eng., Qinghua University; 2 Aerospace School of Tsinghua university, Beijing 100084, China |
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| Abstract: | As the heat resource of welding, arc could emit ultrasonic excited by high frequency modulation. Comparing with conventional SMAW, the metallurgical structure of arc-ultrasonic SMAW could be refined. With the effect of arc-ultrasonic the grain size in fusion zone is reduced and the width of the coarse grain zone turns narrow. At the same time the distribution of residual stress in weld zone is improved through the test of magneto-mechanical effect. |
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| Keywords: | SMAW |
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