| 添加过渡层的镁合金/钢激光-TIG电弧复合熔化焊接机制 |
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| 引用本文： | 宋刚,王杰,于景威,刘黎明.添加过渡层的镁合金/钢激光-TIG电弧复合熔化焊接机制[J].焊接学报,2016,37(5):69-72. |
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| 作者姓名： | 宋刚 王杰 于景威 刘黎明 |
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| 作者单位： | 辽宁省先进连接技术重点试验室大连理工大学材料科学与工程学院, 大连 116024 |
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| 基金项目： | 国家科技重大专项(2012zx04008031):大型船舶立体结构件成形及焊接装备 |
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| 摘 要： | 激光-电弧复合热源技术较单一热源焊接技术相比,具有热源能量密度梯度及热力耦合模式可优化设计等特点,成为实现关键零部件精确成形成性焊接制造的重要方法. 文中以镁合金/钢为代表的难固溶不反应异质材料为研究对象,提出多组元液相共存的镁合金/钢激光-TIG电弧复合焊接新思路,利用激光-TIG电弧复合焊接热源所具有的能量密度梯度分布特征,通过添加Cu-Zn过渡层,实现镁合金/钢异种金属高质量熔化焊接,并对铝元素的作用进行了探讨.
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| 关 键 词： | 激光-电弧复合 异质材料 多组元液相 熔化焊 |
| 收稿时间： | 2014/1/25 0:00:00 |
Study on fusion welding of magnesium alloy to steel by hybrid laser-TIG welding with interlayer |
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| SONG Gang,WANG Jie,YU Jingwei and LIU Liming.Study on fusion welding of magnesium alloy to steel by hybrid laser-TIG welding with interlayer[J].Transactions of The China Welding Institution,2016,37(5):69-72. |
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| Authors: | SONG Gang WANG Jie YU Jingwei and LIU Liming |
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| Affiliation: | Key Laboratory of Liaoning Advanced Welding and Joining Technology, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | Compared with single heat source, laser-TIG hybrid welding with the characteristic of optimum- designed heat source energy density and thermal-mechanical coupling mode is put to achieve precise forming and excellent properties in high-end equipment welding. This paper focuses on realizing high quality fusion welding of magnesium alloy to steel with Cu-Zn interlayer by utilizing the gradient energy density characteristic of laser-TIG heat source. The new idea of multicomponent liquid phase coexistence is put forward in welding magnesium to steel by hybrid laser-TIG welding, meanwhile the effect of Al element is analysed in the welding. |
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| Keywords: | hybrid Laser-TIG dissimilar metals multicomponent liquid phase fusion welding |
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