Abstract
The welding of different materials with an acceptable quality range is an emerging study area; engineers and scientists worldwide have long been concerned with dissimilar welding materials. This study focuses on determining the friction stir welding of different aluminuim alloys; an experimental investigation was conducted (AA7475-T651 and AA2219-O). It also describes the FSW process parameters and response measurement for defining weld quality and the procedure for measuring them. Taguchi L27, orthogonal array method, is preferred for optimizing FSW parameters such as shoulder diameter, tool rotational speed, and traverse speed. The effect of welding parameters is investigated through the ANOVA table and graphs. The SEM analysis investigates the fracture and micrographic analysis in the heat-affected zone and thermo-mechanically affected zone.
Highlights
Dissimilar welding materials are vital for various goods used in automotive, shipbuilding, aerospace, and other industries
Is can be such a difficult task that it is sometimes impossible to acquire a joint. This difficulty is caused by variations in the mechanical characteristics of the connected components
Aluminium alloys are used for structural components because of their fracture toughness, good corrosion resistance, and fatigue strength
Summary
Dissimilar welding materials are vital for various goods used in automotive, shipbuilding, aerospace, and other industries.is can be such a difficult task that it is sometimes impossible to acquire a joint. In order to determine the location of internal flaws and defects, examine causes for poor strength, and comprehend the process of material flow, friction stir-welded samples were subjected to microstructural analysis. Traverse force was determined based on a “lower is better” (minimization) criterion because a lower value results in reduced tool wear (Figure 4), less load on the machine spindle and work fixture, etc.
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