Influence of the Cylindrical Profile of the Welding Tool Pin on the Dimensions of FSW and SFSW Welded Joints in EN AW 1200 Aluminium Alloy

Emilia Dobrin; Lia-Nicoleta Botila; Gabriela-Victoria Mnerie

doi:10.4028/p-zCIZv1

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Influence of the Cylindrical Profile of the Welding Tool Pin on the Dimensions of FSW and SFSW Welded Joints in EN AW 1200 Aluminium Alloy

Abstract:

Friction stir welding is a solid-state joining process of metallic materials using a rotating welding tool that can have different geometric configurations. The paper presents aspects regarding the influence of the welding tool pin geometry on the dimensions of friction stir welded joints in air and in liquid working environment for EN AW 1200 aluminium alloy. Welding tools with smooth and threaded cylindrical pin were used for experimental research, the joints dimensions being comparative analysed by macrostructural investigations. The results are useful in the case of experimental research on FSP processing in air and SFSP in liquid environment of aluminium alloys within the Nucleu PN 23 27 01 02 project underway at ISIM Timisoara.