| 激光-TIG复合焊接镁合金AZ31B焊接工艺 |
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| 引用本文： | 宋刚,刘黎明,王继锋,周继扬. 激光-TIG复合焊接镁合金AZ31B焊接工艺[J]. 焊接学报, 2004, 25(3): 31-34 |
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| 作者姓名： | 宋刚 刘黎明 王继锋 周继扬 |
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| 作者单位： | 大连理工大学,材料工程系,辽宁,大连,116023;大连理工大学,材料工程系,辽宁,大连,116023;大连理工大学,材料工程系,辽宁,大连,116023;大连理工大学,材料工程系,辽宁,大连,116023 |
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| 基金项目： | 国家高技术研究发展专项经费资助项目 ( 863计划，2 0 0 2AA3 3 1160 ) |
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| 摘 要： | 以变形镁合金AZ3lB为主要研究对象，研究激光-TIG复合热源焊接镁合金工艺特点，利用正交试验分析焊接规范对焊缝成型的影响。试验结果表明，激光束的存在增强了镁台金高速焊接时电弧的稳定性，增大了焊缝的熔深。在最佳的工艺条件下镁合金焊缝成型良好．无气孔、裂纹等缺陷，焊接接头抗拉强度与母材强度相当，表明激光-TIG复合热源焊接是一种理想的镁合金焊接新工艺。
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| 关 键 词： | 变形镁合金AZ31B 激光-TIG复合热源 焊接 |
| 文章编号： | 0253-360X(2004)03-31-04 |
| 收稿时间： | 2003-07-30 |
Laser tungsten inert-gas arc hybrid welding process on wrought magnesium ahoy AZ31B |
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| SONG Gang,LIU Li-ming,WANG Ji-feng and ZHOU Ji-yang. Laser tungsten inert-gas arc hybrid welding process on wrought magnesium ahoy AZ31B[J]. Transactions of The China Welding Institution, 2004, 25(3): 31-34 |
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| Authors: | SONG Gang LIU Li-ming WANG Ji-feng ZHOU Ji-yang |
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| Affiliation: | Depart. of Material Engineering, Dalian University of Technology, Dalian 116023, China,Depart. of Material Engineering, Dalian University of Technology, Dalian 116023, China,Depart. of Material Engineering, Dalian University of Technology, Dalian 116023, China and Depart. of Material Engineering, Dalian University of Technology, Dalian 116023, China |
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| Abstract: | The technical characteristics of laser tungsten inert-gasarc (TIG) hybrid welding process were investigated, and at the same timethe effect of parameters on the weld metal geometries was analyzed. Theresults show that the present of laser beam improved the stability and aug-mented the penetration of weld ; and the welt of magnesium alloy can he obtained without porosity and crack and the good tensile strength corre- sponding to based metal. It was proved that laser-TIG hybrid welding is a ideal new welding process for magnesium. |
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| Keywords: | wrought magnesium alloy AZ31 B laser tungsten inert- gas arc hybrid heat source welding |
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