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Influence of D/d ratio on stir zone formation and properties of friction stir welded dissimilar joints of AA5086 and AA6061 aluminum alloys by N PradeepRamakrishnan; V Balasubramanian is a Engineering article available to read on EtoBox.

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## Abstract A well-known method known as Friction stir welding (FSW) is used for combining materials that are distinct from each other. In FSW, a profiled spinning shoulder shifts between sheets of the sections that are to be connected. Heat is produced due to the friction between the base and the tool shoulder when the tool is turning along the weld line. In contrast to fusion welding processes, the heat produced is lower. In these works, the effect of macro/microstructures characterization and the tensile characteristics of the dissimilar AA5086 and AA606I aluminum alloys on the ratio of tool shoulder diameter and tool pin diameter (D/d) used in the FSW were explored. This study shows the superior tensile characteristics on welding components in contrast to the counters made of the sealing units made using a tool profile of threaded cylinders, a 1 ° tool tilting angle, tool rotation speed of 1100 rpm, the welding speed of 22 mm/min and the shoulder diameter is 21 mm. Further, the joints fabricated using threaded cylinder tool profile exhibited superior macro structure compared to its counter parts.

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Author

N PradeepRamakrishnan; V Balasubramanian

Publisher

IOP Publishing

Published

2021

Language

EN

Field

Engineering (Physical Sciences)