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Metals 2017, 7(1), 6; doi:10.3390/met7010006

A Case Study for the Welding of Dissimilar EN AW 6082 and EN AW 5083 Aluminum Alloys by Friction Stir Welding

1
Izmir Vocational School, Dokuz Eylul University, Izmir 35160, Turkey
2
Department of Mechanical Engineering, Faculty of Engineering, Dokuz Eylul University, Izmir 35140, Turkey
3
Graduate School of Natural and Applied Sciences, Dokuz Eylul University, Izmir 35140, Turkey
4
Department of MetallurgicalandMaterialsEngineering, Faculty of Engineering, Dokuz Eylul University, Izmir 35140, Turkey
*
Author to whom correspondence should be addressed.
Academic Editors: Halil Ibrahim Kurt, Adem Kurt and Necip Fazil Yilmaz
Received: 10 November 2016 / Revised: 15 December 2016 / Accepted: 23 December 2016 / Published: 29 December 2016
(This article belongs to the Special Issue Selected Papers from ICWET16)
View Full-Text   |   Download PDF [2920 KB, uploaded 29 December 2016]   |  

Abstract

The aim of this study is to investigate the effect of keeping constant the tool rotational speed to the welding speed ratio (υ ratio) on the mechanical properties of the dissimilar friction stir welding of EN AW6082-T6 and EN AW5083-H111. Two different pins shaped as triangular and pentagonal were associated with the constant υ ratio. From the tensile test results, it was found that the υ ratio does not create an evident change in the weld joint strength. The small cavity- and tunnel-type defects were observed at the nugget zone and located on the advancing side of the pin. These defects caused a decrease in the strength and elongation of the weld joint. The most important inference obtained from the experimental results is that if the υ ratio is kept constant, the weld joint strength for each weld does not correspond to a constant value. View Full-Text
Keywords: dissimilar friction stir welding; pin shape; mechanical properties dissimilar friction stir welding; pin shape; mechanical properties
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Kasman, S.; Kahraman, F.; Emiralioğlu, A.; Kahraman, H. A Case Study for the Welding of Dissimilar EN AW 6082 and EN AW 5083 Aluminum Alloys by Friction Stir Welding. Metals 2017, 7, 6.

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