This paper deals with the dissimilar friction stir lap welding of AA2198 and AA6082 thin sheets. The in fluence of processing parameters, namely welding speed and tool rotational speed on joint features, crostructure, and mechanical properties were investigated by implementing a full factorial design of experiments. During the welding process, axial and transversal forces were continuously measured using a dedicated fixture equipped with sensors aiming at the correlation of this processing parameter with the quality of the achieved joints. The microstructural analysis provided a detailed view of the metallurgical features such as hook, and its relative influence exhibited on the welded joints. Microhardness distribution and lap shear behavior were assessed and correlated with the metallurgical analysis.
Dissimilar friction stir lap welding of AA2198-AA6082: Process analysis and joint characterization
Fausto Tucci;Pierpaolo Carlone;Hetalben Parmar;
2021-01-01
Abstract
This paper deals with the dissimilar friction stir lap welding of AA2198 and AA6082 thin sheets. The in fluence of processing parameters, namely welding speed and tool rotational speed on joint features, crostructure, and mechanical properties were investigated by implementing a full factorial design of experiments. During the welding process, axial and transversal forces were continuously measured using a dedicated fixture equipped with sensors aiming at the correlation of this processing parameter with the quality of the achieved joints. The microstructural analysis provided a detailed view of the metallurgical features such as hook, and its relative influence exhibited on the welded joints. Microhardness distribution and lap shear behavior were assessed and correlated with the metallurgical analysis.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
