Analysing the strength of friction stir welded dissimilar aluminium alloys using Sugeno Fuzzy model

Friction stir welding (FSW) is a promising solid state joining technique for aluminium alloys. In this study, FSW trials were conducted on two dissimilar plates of aluminium alloy AA2024 and AA7075 by varying the tool rotation speed (TRS) and welding speed (WS). Tensile strength (TS) of the joints w...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2018-02, Vol.310 (1), p.12043
Main Authors: Barath, V R, Vaira Vignesh, R, Padmanaban, R
Format: Article
Language:English
Subjects:
Aluminum base alloys
Dissimilar material joining
Dynamic recrystallization
Friction stir welding
Heat generation
Process parameters
Tensile strength
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Summary:Friction stir welding (FSW) is a promising solid state joining technique for aluminium alloys. In this study, FSW trials were conducted on two dissimilar plates of aluminium alloy AA2024 and AA7075 by varying the tool rotation speed (TRS) and welding speed (WS). Tensile strength (TS) of the joints were measured and a Sugeno - Fuzzy model was developed to interconnect the FSW process parameters with the tensile strength. From the developed model, it was observed that the optimum heat generation at WS of 15 mm.min-1 and TRS of 1050 rpm resulted in dynamic recovery and dynamic recrystallization of the material. This refined the grains in the FSW zone and resulted in peak tensile strength among the tested specimens. Crest parabolic trend was observed in tensile strength with variation of TRS from 900 rpm to 1200 rpm and TTS from 10 mm.min-1 to 20 mm.min-1.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/310/1/012043