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| 1420铝锂合金激光焊接气孔抑制技术 | |
| 引用本文： | 王威,徐广印,王旭友,雷震,秦国梁,林尚扬. 1420铝锂合金激光焊接气孔抑制技术[J]. 焊接学报, 2008, 29(2): 5-7,26 |
| 作者姓名： | 王威 徐广印 王旭友 雷震 秦国梁 林尚扬 |
| 作者单位： | 机械科学研究总院,哈尔滨焊接研究所,哈尔滨,150080 |
| 基金项目： | 国家科技部支撑项目 , 黑龙江省自然科学基金 |
| 摘 要： | 分别采用气体和固体两种类型、三台激光器对1420铝锂合金消除气孔的焊接工艺进行了试验研究.结果表明,1420铝合金表面氧化膜对产生气孔有很大影响,化学清理可以获得气孔较少的焊缝.保护气体种类、气体流量、焊接速度对1420铝锂合金气孔都有影响.适宜的双激光束焊接工艺可以获得成形美观且无气孔的优质1420铝锂合金焊缝,是1420铝锂合金焊接较为理想的焊接工艺. |
| 关 键 词： | 铝锂合金 激光焊接 气孔 双光斑焊接 |
| 文章编号： | 0253-360X（2008）02-0005-04 |
| 收稿时间： | 2007-05-25 |
| 修稿时间： | 2007-05-25 |
Porosity prevention of 1420 Al-Li alloy for laser welding |
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| WANG Wei,XU Guangyin,WANG Xuyou,LEI Zhen,QIN Guoliang and LIN Shangyang. Porosity prevention of 1420 Al-Li alloy for laser welding[J]. Transactions of The China Welding Institution, 2008, 29(2): 5-7,26 | |
| Authors: | WANG Wei XU Guangyin WANG Xuyou LEI Zhen QIN Guoliang LIN Shangyang |
| Affiliation: | Harbin Welding Institute, China Academy of Machinery Science and Technology, Harbin 150080, China,Harbin Welding Institute, China Academy of Machinery Science and Technology, Harbin 150080, China,Harbin Welding Institute, China Academy of Machinery Science and Technology, Harbin 150080, China,Harbin Welding Institute, China Academy of Machinery Science and Technology, Harbin 150080, China,Harbin Welding Institute, China Academy of Machinery Science and Technology, Harbin 150080, China and Harbin Welding Institute, China Academy of Machinery Science and Technology, Harbin 150080, China |
| Abstract: | Experimental study was carried out with three laser devices of two type of laser device.The results show that the oxide of on the 1420 Al-Li alloy surface will make for pores in the process of laser welding, and the pores can be decreased by chemic cleaning to the surface.The numbers of pores have something to do with the sort of gas, the shielding gas flux, and the welding speed.As last, 1420 Al-Li alloy weld without porosity and with good appearance was oblained by adopting dual laser beams welding. |
| Keywords: | Al-Li alloy laser welding porosity dual laser beam welding |
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