| 1420铝锂合金激光焊接工艺研究 |
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| 引用本文： | 庄蕾,罗宇,王亚军,巴瑞章.1420铝锂合金激光焊接工艺研究[J].焊接,2006(1):39-42. |
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| 作者姓名： | 庄蕾 罗宇 王亚军 巴瑞章 |
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| 作者单位： | 1. 大连交通大学,116028
2. 北京航空制造工程研究所,100024 |
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| 摘 要： | 对2.5 mm厚1420铝锂合金板材进行了YAG激光焊接,重点研究了YAG激光焊接工艺参数对焊缝成形的影响和接头的拉伸、疲劳性能及其影响因素.研究结果表明,焊接工艺参数中离焦量对焊缝成形的影响为抛物线趋势,存在最佳离焦量值;焊接速度对它的影响为直线下降趋势;激光功率对它的影响为直线上升趋势.热处理的影响较大,热处理后接头的抗拉强度有很大提高.
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| 关 键 词： | 铝锂合金 激光焊接 热处理 修饰 |
| 收稿时间： | 2005-09-13 |
| 修稿时间： | 2005年9月13日 |
Study on laser welding of 1420 Al-Li alloy |
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| Zhuang Lei,Luo Yu,Wang Ya-jun,Ba Rui-zhang.Study on laser welding of 1420 Al-Li alloy[J].Welding & Joining,2006(1):39-42. |
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| Authors: | Zhuang Lei Luo Yu Wang Ya-jun Ba Rui-zhang |
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| Affiliation: | 1.Dalian Jiaotong University;2.BAMTRI , Key Laboratory for High Energy Density Beam Processing Technology |
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| Abstract: | 1420 Al - Li alloy of 2.5 mm thickness was welded by YAG laser and the effects of process parameters on the formation of weld and mechanical properties were researched. The results showed that the effect of out - of- focus position on the formation of weld presented the regularity of parabolic curve and there existed the optimum out - of - focus position. The effect of welding speed on the formation of weld presented the regularity of descending line, while that of laser power presented the regularity of ascending line. The tensile strength of the joint was increased greatly after the heat treatment. |
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| Keywords: | Al- Li alloy laser welding heat treatment modify |
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