Galvanised steel to aluminium joining by laser and GTAW processes
Galvanised steel to aluminium joining by laser and GTAW processes
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DOI：
10.1016/j.matchar.2008.03.016
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发表时间：
2008-12
影响因子：
4.7
通讯作者：
G. Sierra;P. Peyre;F. D. Beaume;D. Stuart;G. Fras
中科院分区：
文献类型：
--
作者：
G. Sierra;P. Peyre;F. D. Beaume;D. Stuart;G. Fras
采用激光和气体保护钨极电弧焊（GTAW）工艺，开发了一种将镀锌钢与铝组装在一起的新方法，该方法涉及固体钢与液体铝之间的反应。一个直接的铝熔化策略进行了研究与激光工艺，而铝诱导熔化钢加热和热传导通过钢进行了GTAW工艺。界面主要由2-40 μm厚的金属间反应层组成。对于分别通过激光和GTAW工艺生产的组件，组件的线性强度可以高达250 N/mm和190 N/mm。相应的失效位于铝的熔合区（激光组件）或反应层（GTAW组件）。
A new means of assembling galvanised steel to aluminium involving a reaction between solid steel and liquid aluminium was developed, using laser and gas tungsten arc welding (GTAW) processes. A direct aluminium melting strategy was investigated with the laser process, whereas an aluminium-induced melting by steel heating and heat conduction through the steel was carried out with the GTAW process. The interfaces generated during the interaction were mainly composed of a 2–40 μm thick intermetallic reaction layers. The linear strength of the assemblies can be as high as 250 N/mm and 190 N/mm for the assemblies produced respectively by laser and GTAW processes. The corresponding failures were located in the fusion zone of aluminium (laser assemblies), or in the reaction layer (GTAW assemblies).