Reduced hot cracking susceptibility by controlling the fusion ratio in laser welding of dissimilar Al alloys joints
Reduced hot cracking susceptibility by controlling the fusion ratio in laser welding of dissimilar Al alloys joints
复制标题
通过控制异种铝合金激光焊接熔合比来降低热裂纹敏感性
DOI：
10.1557/jmr.2015.64
复制
发表时间：
2015-04
影响因子：
2.7
通讯作者：
Xinhua Tang
中科院分区：
文献类型：
--
作者：
Hui-Ping Wang;Xiaojie Wang;Haichao Cui;Xinhua Tang
随着铝合金在汽车制造中的应用日益广泛，异种铝合金的搭接成为汽车制造中的必然要求。然而，由于化学成分和热张力的原因，热裂是一个具有挑战性的问题，这在很大程度上决定了汽车运行的可靠性。在不同的铝合金中，广泛使用的是5000 （Al - mg）和6000 （Al - mg - si）系列。为了更好地了解AA5754和AA6013的热裂行为，采用激光焊接方法研究了工艺参数对热裂形成的影响。对焊接接头的化学成分、显微组织、熔合率和断口形貌进行了检测。结果表明，材料堆砌顺序对焊缝热裂敏感性有显著影响，得到了能有效降低热裂的关键工艺参数。研究结果对异种铝合金激光焊接中防止热裂具有指导意义。
With the increasing usage of Al alloys in vehicle manufacture, it is necessary to join dissimilar Al alloys with lap joint. However, hot cracking is a challenging issue due to the chemical composition and thermal tension, which greatly determines the reliability of automobile operation. Among different Al alloys, the series 5000 (Al–Mg) and 6000 (Al–Mg–Si) are widely used. To better understand the hot cracking behavior, various stack ups of AA5754 and AA6013 were laser welded to investigate the effects of process parameters on hot cracking formation. The chemical composition, microstructure, fusion ratio, and fracture morphology of the weld joint were also examined. The results showed that the order of material stacking affected weld’s susceptibility to hot cracking significantly, and the critical process parameters were obtained for tested conditions which could effectively reduce hot cracking. The findings from this work provide guidance for hot cracking prevention in laser welding of dissimilar Al alloys.
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DOI：
10.1016/j.msea.2004.08.045
发表时间：
2005-01
影响因子：
6.4
作者：
H. Ahmed;M. Wells;D. Maijer;B. Howes;M. Winden
通讯作者：
H. Ahmed;M. Wells;D. Maijer;B. Howes;M. Winden
DOI：
10.1016/s0921-5093(99)00674-7
发表时间：
2000-03-15
影响因子：
6.4
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Heinz, A;Haszler, A;Miller, WS
通讯作者：
Miller, WS
DOI：
10.1016/j.msea.2005.10.041
发表时间：
2006-01-25
影响因子：
6.4
作者：
Kuo, TY;Lin, HC
通讯作者：
Lin, HC
影响因子：
2.2
作者：
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G. Cao;S. Kou
影响因子：
8.4
作者：
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Lippold, John C.