| 基于激光-MIG复合热源的5A02铝合金/镀锌钢熔-钎焊 |
| |
| 引用本文： | 雷振,秦国梁,林尚扬,王旭友. 基于激光-MIG复合热源的5A02铝合金/镀锌钢熔-钎焊[J]. 机械工程学报, 2009, 45(3). DOI: 10.3901/JME.2009.03.094 |
| |
| 作者姓名： | 雷振 秦国梁 林尚扬 王旭友 |
| |
| 作者单位： | 哈尔滨焊接研究所,哈尔滨,150080;哈尔滨焊接研究所,哈尔滨,150080;哈尔滨焊接研究所,哈尔滨,150080;哈尔滨焊接研究所,哈尔滨,150080 |
| |
| 摘 要： | 基于激光--MIG复合热源焊接技术实现了5A02铝合金/镀锌钢异种金属板材的优质、高效熔-钎焊接,并对焊缝的成形、接头性能及微观结构作了分析.分析结果表明,该焊接技术可以实现5A02铝合金/镀锌钢的高速熔-钎焊接,最高焊接速度可达5 m/min,焊接接头中镀锌钢母材未发生熔化,铝焊缝与镀锌钢母材为钎焊连接;焊接接头的抗拉强度可达153.1 Mpa,约为5A02铝合金母材抗拉强度的75.7%,接近于该铝合金熔化焊接头的强度;拉伸试验中试样断裂在焊缝铝合金母材热影响区,接头的断裂主要是塑性断裂,但有脆性断裂的痕迹.对接头的组织和结构进行分析表明:焊缝钎接界面处生成了一薄层Al-Fe金属间化合物,化合物层的平均厚度约为1.51μm,生成的金属间化合物主要为Fe3Al、FeAl2、Fe2A15、FeAl3,并且在这些化合物的周围会产生Si元素的富集.
|
| 关 键 词： | 激光 MIG电弧 复合热源 异种金属 熔-钎焊接 |
Fusion-brazing Joining for Dissimilar Metals Between 5A02 Aluminium Alloy and Zinc-coated Steel Based on Laser-MIG Hybrid Welding |
| |
| LEI Zhen,QIN Guoliang,LIN Shangyang,WANG Xuyou. Fusion-brazing Joining for Dissimilar Metals Between 5A02 Aluminium Alloy and Zinc-coated Steel Based on Laser-MIG Hybrid Welding[J]. Chinese Journal of Mechanical Engineering, 2009, 45(3). DOI: 10.3901/JME.2009.03.094 |
| |
| Authors: | LEI Zhen QIN Guoliang LIN Shangyang WANG Xuyou |
| |
| Affiliation: | Harbin Welding Institute;Harbin 150080 |
| |
| Abstract: | High efficiency and quality fusion-brazing joining between 5A02 aluminium alloy and zinc-coated steel sheet, based on laser-MIG hybrid welding, is successfully done. The seam appearance and the mechanical properties as well as the microstructures of the joints are analyzed. The results indicate that a high speed fusion-brazing joining can be achieved with this welding method, and the highest welding speed is up to 5 m/min. A brazed joint between the aluminium alloy and the steel is formed, and the steel she... |
| |
| Keywords: | Laser MIG arc Hybrid welding Dissimilar metals Fusion-brazing joining |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
