Mechanical analysis of ultra-thin friction stir welding joined sheets with dissimilar and similar materials
Mechanical analysis of ultra-thin friction stir welding joined sheets with dissimilar and similar materials
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DOI：
10.1016/j.matdes.2007.04.006
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发表时间：
2008
影响因子：
8.4
通讯作者：
A. Scialpi;M. Giorgi;L. D. Filippis;R. Nobile;F. Panella
中科院分区：
文献类型：
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作者：
A. Scialpi;M. Giorgi;L. D. Filippis;R. Nobile;F. Panella
在过去的十年中，航空航天和汽车工业已经解决了大量的关注，一种新的焊接技术的基础上的固态过程，称为摩擦搅拌焊接（FSW）。FSW工艺显示出多个优点，特别是焊接不同铝合金的可能性。采用μFSW（FSW for Ultra-thin Sheets）对0.8mm厚的2024-T3和6082-T6铝合金薄板进行了轧制方向的焊接。相似和不同的接头都已成功生产和分析。已通过静态和单轴疲劳测试，在恒定载荷振幅下进行了机械表征。最后，显微硬度和残余应力测量已被执行焊接板上的每一个接头类型。
In the last ten years, aerospace and automotive industries have addressed large attention to a new welding technology based on a solid-state process, called friction stir welding (FSW). FSW process shows several advantages, in particular the possibility to weld dissimilar aluminium alloys. In this paper, thin aluminium alloy 2024-T3 and 6082-T6 sheets, 0.8mm thick, have been welded in the rolling direction by μFSW (FSW for ultra-thin sheets). Both similar and dissimilar joints have been successfully produced and analysed. Mechanical characterization has been executed through static and uniaxial fatigue tests with a constant load amplitude. Finally, microhardness and residual stress measurements have been executed on welded sheets for each joint typology.