Thermal Modeling of Al-Al and Al-Steel Friction Stir Spot Welding
Thermal Modeling of Al-Al and Al-Steel Friction Stir Spot Welding
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DOI：
10.1007/s11665-016-2225-y
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发表时间：
2016-07
影响因子：
2.3
通讯作者：
P. Jedrasiak;H. Shercliff;Aidan Reilly;G. McShane;Ying Chun Chen;Li Wang;Joseph D. Robson;P. Prangnell
中科院分区：
文献类型：
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作者：
P. Jedrasiak;H. Shercliff;Aidan Reilly;G. McShane;Ying Chun Chen;Li Wang;Joseph D. Robson;P. Prangnell
本文建立了异种合金搅拌摩擦点焊的有限元热模型。该模型使用Al-Al和Al-Fe汽车板合金的仪器搭接进行校准和验证。该模型成功地预测了一系列工艺条件下的热历史。所得的温度历史可用于预测Al-Fe焊缝界面金属间相的生长。采用温度预测方法研究了沉淀硬化铝合金在FSSW焊后时效过程中的硬度变化。
This paper presents a finite element thermal model for similar and dissimilar alloy friction stir spot welding (FSSW). The model is calibrated and validated using instrumented lap joints in Al-Al and Al-Fe automotive sheet alloys. The model successfully predicts the thermal histories for a range of process conditions. The resulting temperature histories are used to predict the growth of intermetallic phases at the interface in Al-Fe welds. Temperature predictions were used to study the evolution of hardness of a precipitation-hardened aluminum alloy during post-weld aging after FSSW.